10k Oil change intervals?? Amsoil XL
04-29-2012, 07:08 AM
#1
10k Oil change intervals?? Amsoil XL
I started running amsoil XL and dealers say that it is ok and good for 10k oil changes-forced induction and all. They make a signature series that says on the bottle--25k miles. Wow 
Anyways,
I am currently FI ST. I have always changed my oil between 3k-4k miles. Now that Im running this amsoil XL they said 10k is normal and all. I had the regular purlator filter and he said if I wasnt running the amsoil filter then just change the filter at 5k and after-get the amsoil filter that was good for 10k-15k miles. Now they say you can send the oil in after so many miles for an analysis and all to see how it is doing also. I havent done that. Im at the 5k mark and changed the filter w another purlator. Oil isnt crazy dark or anything. Im far from lazy, so thats not the reason why Im waiting. I think that the 3k interval is over-rated personally.
Now to the questions.....
-Am I crazy to even let it hit the 5k mark and still havent changed the oil?
-Are they crazy? Especially the 25k (why would they make it and print on it)?
-Am I/Should I even risk the 10k mark?
-Stick w/ the 3k-4k oil change interval?
-5k ok?
-Change it now (5k mark)?
Anyways,
I am currently FI ST. I have always changed my oil between 3k-4k miles. Now that Im running this amsoil XL they said 10k is normal and all. I had the regular purlator filter and he said if I wasnt running the amsoil filter then just change the filter at 5k and after-get the amsoil filter that was good for 10k-15k miles. Now they say you can send the oil in after so many miles for an analysis and all to see how it is doing also. I havent done that. Im at the 5k mark and changed the filter w another purlator. Oil isnt crazy dark or anything. Im far from lazy, so thats not the reason why Im waiting. I think that the 3k interval is over-rated personally.
Now to the questions.....
-Am I crazy to even let it hit the 5k mark and still havent changed the oil?
-Are they crazy? Especially the 25k (why would they make it and print on it)?
-Am I/Should I even risk the 10k mark?
-Stick w/ the 3k-4k oil change interval?
-5k ok?
-Change it now (5k mark)?
04-29-2012, 07:55 AM
#2
*Note that this is an oil discussion so absolutely everything that you hear (including me) will be nothing more than personal opinions based on how the marketing "data" available spoke to the writer*
With that being said:
No
No
Yes
No
Yes
No
I would run it at least 10-15k but certainly change the filters at normal intervals. When synthetic oil first hit the market, part of its selling feature was that it lasted longer and it was stated on the bottles. Then they noticed that over zealous car maintenance customers like to go overboard on oil changes because it's the only thing that the customer tends to know how to do on their own. Suddenly, the extra mileage that synthetics used to get disappeared from the packaging while conventional oil continued to say "change at 3k". I've always believed that synthetic oil should be good for significantly longer.
HOWEVER... When they say forced induction, they are likely referring to factory turbo'd vehicles and that's not what you're talking about, so I'm re-thinking this...
AMS Oil is so expensive it should last forever and change itself, so if you didn't believe their marketing, why did you buy it?
With that being said:
No
No
Yes
No
Yes
No
I would run it at least 10-15k but certainly change the filters at normal intervals. When synthetic oil first hit the market, part of its selling feature was that it lasted longer and it was stated on the bottles. Then they noticed that over zealous car maintenance customers like to go overboard on oil changes because it's the only thing that the customer tends to know how to do on their own. Suddenly, the extra mileage that synthetics used to get disappeared from the packaging while conventional oil continued to say "change at 3k". I've always believed that synthetic oil should be good for significantly longer.
HOWEVER... When they say forced induction, they are likely referring to factory turbo'd vehicles and that's not what you're talking about, so I'm re-thinking this...
AMS Oil is so expensive it should last forever and change itself, so if you didn't believe their marketing, why did you buy it?
04-29-2012, 09:19 AM
#3
Its not that I dont belive anything. I am just very cautious and over-think a lot of things. Everybody knows the 'better safe then sorry' quote. The dealer did ask me "have you been running it hard?" also. So Im sure there are different situations to when you should change it-track,drift,drag,etc.. Im not crazy with it. Actually calmed it down a little. So not into boost all the time, its in just here and there. Want the motor to last.
And....
Amsoil is actually not that expensive. I think that royal purple is more expensive.
And....
Amsoil is actually not that expensive. I think that royal purple is more expensive.
Last edited by taywan; 04-29-2012 at 09:23 AM.
04-29-2012, 09:23 AM
#4
copied/pasted:
SAE 5W-30 XL Extended Life Synthetic Motor Oil
Product Code: XLFQT-EA
Formulated for up to 10,000-miles/six month intervals, or longer when recommended in owners’ manuals or indicated by oil monitoring systems. Provides better wear control, high- and low-temperature protection and increased fuel economy compared to conventional oils.
SAE 5W-30 XL Extended Life Synthetic Motor Oil
Product Code: XLFQT-EA
Formulated for up to 10,000-miles/six month intervals, or longer when recommended in owners’ manuals or indicated by oil monitoring systems. Provides better wear control, high- and low-temperature protection and increased fuel economy compared to conventional oils.
04-29-2012, 11:33 AM
#7
Changong oil at 3k intervals (if you are using good oil)is doing nothing but putting bucks in the oil companies pockets.Keep doing the 3k as a ritual if you must.Cars designed these days do well at 5-6k changes.As far as 10k changes,I don't car what typw of oil you are using,I just don't buy it.
Hey,realistically...most guys on this forum have not bought their Z new.Also,probably don't know what the previous owner/owners did inthe way of oil changes&maintenance.
In addition,you probably won't keep your Z to say,150k+ miles.
I'm in the minority.I usually buy new,keep the car,sometimes well over 200 k miles.
I've done this several times.Along with my 03 Touring,I've followed the 5-6k oil change
schedule.Have not used the "latest-wiz bang trendy" oil that everyone just has to have.
I used a synthetic blend,usually Valvoline.My cars have lasted with no oil use.
My Z uses maybe if that,a half a qt to top up between changes.A good filter is a must.
Again,nothing special.I'll go with a OEM Nissan most times.
Its your money
Hey,realistically...most guys on this forum have not bought their Z new.Also,probably don't know what the previous owner/owners did inthe way of oil changes&maintenance.
In addition,you probably won't keep your Z to say,150k+ miles.
I'm in the minority.I usually buy new,keep the car,sometimes well over 200 k miles.
I've done this several times.Along with my 03 Touring,I've followed the 5-6k oil change
schedule.Have not used the "latest-wiz bang trendy" oil that everyone just has to have.
I used a synthetic blend,usually Valvoline.My cars have lasted with no oil use.
My Z uses maybe if that,a half a qt to top up between changes.A good filter is a must.
Again,nothing special.I'll go with a OEM Nissan most times.
Its your money
Trending Topics
04-29-2012, 11:38 AM
#8
I was thinking at least 5k was ok. I went to the shop and was going to get more oil to do the 5k change and he said i was ok. So hek. Idk. Im iffy going 10k. That's what I do w my diesel truck. And the manual says 7500. And that holds 12quarts.
04-29-2012, 11:45 AM
#9
I have always done my changes at 3k intervals even with synthetic. Since my build I have done 5 changes in 7k miles. Obviously the first two were very short intervals.
I have had all of them tested by Blackstone and all of them had over 90% of their life left (2k each for 3) but all had break in metals somewhat higher than the norm.
I'd by far rather throw away an hour and the 50 bucks the Wix filter and Castrol Titanium I am running costs to save my 12k+ motor cost me.
I have had all of them tested by Blackstone and all of them had over 90% of their life left (2k each for 3) but all had break in metals somewhat higher than the norm.
I'd by far rather throw away an hour and the 50 bucks the Wix filter and Castrol Titanium I am running costs to save my 12k+ motor cost me.
04-29-2012, 12:16 PM
#10
I do mine every 5k miles with Pennzoil Platinum but I'm not FI. There is a very interesting oil thread on here somewhere stating that, based on oil analysis, I could go 10k miles between oil changes but that is out of my comfort zone.
04-29-2012, 12:20 PM
#11
^ e30cabrio, I hear ya, and as long as you're comfortable with it, that's good.
But, his test data is showing that there was a lot of life left in that oil, so I think it's reasonable to push it a lot farther than 3k. I'd certainly go 5k and I'd like to see some test results from someone that went over 10k. I would not let a filter go past 3-5k however.
I certainly don't know, but I've got to think that diesels are much harder on oil than gasoline vehicles when you think about the amount of suspended particles that they have to maintain.
I mean, diesel oil turns blacker than ape **** practically by the time you first pull the dipstick to verify the oil level after changing and starting it! True, they call for a lot more oil, but they are large displacement engines designed for constant pulling. A Ford Powerstroke takes close to 16L if I recall correctly.
I just think that there must be a reasonable limit to the "better safe than sorry" mentality at some point. Bicycle helmets, wearing fall-arrest gear while walking on enclosed scaffolding, ski helmets, concealed firearms etc, etc... At some point people will suggest wearing helmets to protect against debris falling from airplanes and it all stems from the same basic argument. Of course, this pales in comparison because it is still relatively cheap and not too inconvenient, but I think it's important to try to keep it all in perspective.
But, his test data is showing that there was a lot of life left in that oil, so I think it's reasonable to push it a lot farther than 3k. I'd certainly go 5k and I'd like to see some test results from someone that went over 10k. I would not let a filter go past 3-5k however.
I certainly don't know, but I've got to think that diesels are much harder on oil than gasoline vehicles when you think about the amount of suspended particles that they have to maintain.
I mean, diesel oil turns blacker than ape **** practically by the time you first pull the dipstick to verify the oil level after changing and starting it! True, they call for a lot more oil, but they are large displacement engines designed for constant pulling. A Ford Powerstroke takes close to 16L if I recall correctly.I just think that there must be a reasonable limit to the "better safe than sorry" mentality at some point. Bicycle helmets, wearing fall-arrest gear while walking on enclosed scaffolding, ski helmets, concealed firearms etc, etc... At some point people will suggest wearing helmets to protect against debris falling from airplanes and it all stems from the same basic argument. Of course, this pales in comparison because it is still relatively cheap and not too inconvenient, but I think it's important to try to keep it all in perspective.
04-29-2012, 12:53 PM
#14
you have to look at the time frame as well if you only drive it 1000 miles(being very extreme here) every 6 months the oils is going to be jello when you change it.(no joke lady brought her car in and told us she had only driven it 1500 miles since last oil change..............12 months previous we had to cut the oil out of the pan with a knife.) you also have to look at what is in the oil its not all about just the life left. finally it also depends on your driving habit, me personally my car will prob get every 2500 miles when its back togeather if not sooner since i know im going to drive it hard, which breaks down oil quicker. but if its just normal driving then you should be fine, i personally wouldnt do it since i have seen problems from it but if your not having issues with that oil change routine then more power to yah.
04-30-2012, 03:53 AM
#18
^ e30cabrio, I hear ya, and as long as you're comfortable with it, that's good.
But, his test data is showing that there was a lot of life left in that oil, so I think it's reasonable to push it a lot farther than 3k. I'd certainly go 5k and I'd like to see some test results from someone that went over 10k. I would not let a filter go past 3-5k however.
I certainly don't know, but I've got to think that diesels are much harder on oil than gasoline vehicles when you think about the amount of suspended particles that they have to maintain. I mean, diesel oil turns blacker than ape **** practically by the time you first pull the dipstick to verify the oil level after changing and starting it! True, they call for a lot more oil, but they are large displacement engines designed for constant pulling. A Ford Powerstroke takes close to 16L if I recall correctly.
I just think that there must be a reasonable limit to the "better safe than sorry" mentality at some point. Bicycle helmets, wearing fall-arrest gear while walking on enclosed scaffolding, ski helmets, concealed firearms etc, etc... At some point people will suggest wearing helmets to protect against debris falling from airplanes and it all stems from the same basic argument. Of course, this pales in comparison because it is still relatively cheap and not too inconvenient, but I think it's important to try to keep it all in perspective.
But, his test data is showing that there was a lot of life left in that oil, so I think it's reasonable to push it a lot farther than 3k. I'd certainly go 5k and I'd like to see some test results from someone that went over 10k. I would not let a filter go past 3-5k however.
I certainly don't know, but I've got to think that diesels are much harder on oil than gasoline vehicles when you think about the amount of suspended particles that they have to maintain.
I mean, diesel oil turns blacker than ape **** practically by the time you first pull the dipstick to verify the oil level after changing and starting it! True, they call for a lot more oil, but they are large displacement engines designed for constant pulling. A Ford Powerstroke takes close to 16L if I recall correctly.I just think that there must be a reasonable limit to the "better safe than sorry" mentality at some point. Bicycle helmets, wearing fall-arrest gear while walking on enclosed scaffolding, ski helmets, concealed firearms etc, etc... At some point people will suggest wearing helmets to protect against debris falling from airplanes and it all stems from the same basic argument. Of course, this pales in comparison because it is still relatively cheap and not too inconvenient, but I think it's important to try to keep it all in perspective.
05-02-2012, 06:18 AM
#19
Extended Life 5W-30 Synthetic Motor Oil (XLF)
Extended-Drain Boost Technology
See Pricing Information or Place an Order
Package sizes include:
1-Quart Bottle
1-Quart Bottles (case of 12)
1-Gallon Bottle
1-Gallon Bottles (case of 4)
30-Gallon Drum
55-Gallon Drum
AMSOIL XL Extended Life Synthetic Motor Oils provide better wear control, high- and low-temperature protection and increased fuel economy compared to conventional oils. Formulated with extended-drain boost technology, AMSOIL XL Synthetic Motor Oils provide superior performance for up to 10,000-miles/six months, or longer when recommended in owner’s manuals or indicated by electronic oil life monitoring systems.
AMSOIL, the leader in automotive synthetic lubrication, produced the world’s first API-qualified synthetic motor oil in 1972. Trust the extensive experience of AMSOIL, the First in Synthetics®, to do the best job protecting your engine.
Extended-Drain Boost Technology
During normal engine operation, the combustion process creates acidic by-products that can lead to internal component corrosion and a reduction in the life expectancy of the engine oil and engine itself. Formulated with extended-drain boost technology, AMSOIL XL Synthetic Motor Oils employ high-quality synthetic base stocks and a unique additive chemistry to neutralize acids longer than conventional oils. The extra additive package effectively raises the Total Base Number (TBN), a measure of an oil’s useful service life, and provides superior protection and performance throughout the entire drain interval.
Lower Maintenance Costs
Cost-conscious motorists, business owners and fleet managers benefit from the extended drain intervals and wear protection of AMSOIL XL Synthetic Motor Oils. While frequent oil changes are expensive, time consuming and inconvenient, longer drain intervals reduce costs and environmental impact, while increased wear control can reduce maintenance costs. With AMSOIL XL Synthetic Motor Oils, motorists realize the convenience and cost savings of extended drain intervals while also providing vehicles with maximum protection.
Improve Fuel Economy
Formulated with friction modifiers, AMSOIL XL Synthetic Motor Oils are fuel-efficient oils that reduce friction-related energy loss. They provide better fuel economy compared to conventional, non-fuel-efficient motor oils.
Maintain Low Emissions
AMSOIL XL Synthetic Motor Oils are friendly toward modern emissions control systems, promoting proper operation of catalytic converters for optimum service life and low exhaust emissions.
Hot- and Cold-Engine Protection
AMSOIL XL Synthetic Motor Oils are multi-viscosity formulations. Compared to conventional oils, they better resist the effects of thermal breakdown, including evaporation and viscosity loss, while remaining fluid in cold temperatures for easier cold starts and fast start-up circulation.
Keep Engines Clean
Fortified with detergent and dispersant additives, AMSOIL XL Synthetic Motor Oils are engineered to resist sludge and carbon deposits better than conventional oils. They promote clean operation for longer-lasting, better-running engines.
Bid Appropriate
AMSOIL XL Synthetic Motor Oils fulfill the requirements of most public and private purchasing bids. They are cost effective, making them ideal where synthetic motor oil is specified.
APPLICATIONS
AMSOIL XL Synthetic Motor Oils are excellent for use in all types of gasoline-fueled vehicles. They are recommended for all domestic and foreign vehicles requiring any of the listed performance specifications:
XLF 5W-30 Synthetic Motor Oil
•API SN (Resource Conserving), SM...; ILSAC GF-5,
GF-4...; ACEA A1/B1; Ford WSS-M2C946-A, WSS-M2C929-A,
Chrysler MS-6395; GM dexos1TM (supersedes LL-A-025, 6094M
and 4718M). Fortified with detergents that exceed dexos1™ sufated ash specifications.
MIXING AMSOIL
AMSOIL XL Synthetic Motor Oils are compatible with conventional and other synthetic motor oils. Mixing AMSOIL XL Synthetic Motor Oils with other oils, however, will shorten the oil life expectancy and reduce the performance benefits. AMSOIL does not support extended drain intervals where oils have been mixed.
Aftermarket oil additives are not recommended for use with AMSOIL XL Synthetic Motor Oils.
SERVICE LIFE
In gasoline-fueled vehicles, AMSOIL XL Synthetic Motor Oils are recommended for up to 10,000-mile/six-month oil change intervals or longer when recommended in owner's manuals or indicated by electronic oil life monitoring systems. Change aftermarket, original equipment manufacturer or AMSOIL Ea Oil Filter at every oil change.
HEALTH & SAFETY
This product is not expected to cause health concerns when used for the intended application and according to the recommendations in the Material Safety Data Sheet (MSDS). MSDS’s are available upon request at 715-392- 7101 or on the AMSOIL Website. Keep Out of Reach of Children. Don’t pollute. Return used oil to collection centers.
TYPICAL TECHNICAL PROPERTIES
AMSOIL XL 5W-30 SYNTHETIC MOTOR OIL
5W-30
(XLF)
Kinematic Viscosity @ 100°C, cSt (ASTM D-445)
10.9
Kinematic Viscosity @ 40°C, cSt (ASTM D-445)
64.8
Viscosity Index (ASTM D-2270)
160
CCS Viscosity, cP @ (°C) (ASTM D-5293)
5524 (-30)
Flash Point °C (°F) (ASTM D-92)
226 (439)
Fire Point °C (°F) (ASTM D-92)
240 (464)
Pour Point °C (°F) (ASTM D-97)
-43 (-45)
Noack Volatility, % weight loss (g/100g) (ASTM D-5800)
10.5
High Temperature/High Shear Viscosity
@ 150°C and 1.0 X 106 s-1, cP (ASTM D-5481)
3.3
Four Ball Wear Test @ 40 kgf, 75°C,
1200 rpm, 1 hour, scar diameter, mm (ASTM D-4172)
0.44
Total Base Number (ASTM D-2896)
9.0
PRODUCT LOOKUP GUIDES
Auto and Light Trucks
PowerSports Lookup
Small Engine Lookup
TRICO Heavy Duty
FILTER LOOKUP GUIDES
Vintage Vehicle
Heavy Duty Lookup
PERFORMANCE TESTS
View Results
CROSS REFERENCE GUIDES
Master Filter Cross
NGK Plugs and Wires
INSTALLATION INFO
By-Pass Filters
WIX Cabin Air Filters
MANN Cabin Air Filters
MISCELLANEOUS
Drain Interval Chart
Gear Lube Chart
Two-Cycle Chart
MSDS Sheets
Extended-Drain Boost Technology
See Pricing Information or Place an Order
Package sizes include:
1-Quart Bottle
1-Quart Bottles (case of 12)
1-Gallon Bottle
1-Gallon Bottles (case of 4)
30-Gallon Drum
55-Gallon Drum
AMSOIL XL Extended Life Synthetic Motor Oils provide better wear control, high- and low-temperature protection and increased fuel economy compared to conventional oils. Formulated with extended-drain boost technology, AMSOIL XL Synthetic Motor Oils provide superior performance for up to 10,000-miles/six months, or longer when recommended in owner’s manuals or indicated by electronic oil life monitoring systems.
AMSOIL, the leader in automotive synthetic lubrication, produced the world’s first API-qualified synthetic motor oil in 1972. Trust the extensive experience of AMSOIL, the First in Synthetics®, to do the best job protecting your engine.
Extended-Drain Boost Technology
During normal engine operation, the combustion process creates acidic by-products that can lead to internal component corrosion and a reduction in the life expectancy of the engine oil and engine itself. Formulated with extended-drain boost technology, AMSOIL XL Synthetic Motor Oils employ high-quality synthetic base stocks and a unique additive chemistry to neutralize acids longer than conventional oils. The extra additive package effectively raises the Total Base Number (TBN), a measure of an oil’s useful service life, and provides superior protection and performance throughout the entire drain interval.
Lower Maintenance Costs
Cost-conscious motorists, business owners and fleet managers benefit from the extended drain intervals and wear protection of AMSOIL XL Synthetic Motor Oils. While frequent oil changes are expensive, time consuming and inconvenient, longer drain intervals reduce costs and environmental impact, while increased wear control can reduce maintenance costs. With AMSOIL XL Synthetic Motor Oils, motorists realize the convenience and cost savings of extended drain intervals while also providing vehicles with maximum protection.
Improve Fuel Economy
Formulated with friction modifiers, AMSOIL XL Synthetic Motor Oils are fuel-efficient oils that reduce friction-related energy loss. They provide better fuel economy compared to conventional, non-fuel-efficient motor oils.
Maintain Low Emissions
AMSOIL XL Synthetic Motor Oils are friendly toward modern emissions control systems, promoting proper operation of catalytic converters for optimum service life and low exhaust emissions.
Hot- and Cold-Engine Protection
AMSOIL XL Synthetic Motor Oils are multi-viscosity formulations. Compared to conventional oils, they better resist the effects of thermal breakdown, including evaporation and viscosity loss, while remaining fluid in cold temperatures for easier cold starts and fast start-up circulation.
Keep Engines Clean
Fortified with detergent and dispersant additives, AMSOIL XL Synthetic Motor Oils are engineered to resist sludge and carbon deposits better than conventional oils. They promote clean operation for longer-lasting, better-running engines.
Bid Appropriate
AMSOIL XL Synthetic Motor Oils fulfill the requirements of most public and private purchasing bids. They are cost effective, making them ideal where synthetic motor oil is specified.
APPLICATIONS
AMSOIL XL Synthetic Motor Oils are excellent for use in all types of gasoline-fueled vehicles. They are recommended for all domestic and foreign vehicles requiring any of the listed performance specifications:
XLF 5W-30 Synthetic Motor Oil
•API SN (Resource Conserving), SM...; ILSAC GF-5,
GF-4...; ACEA A1/B1; Ford WSS-M2C946-A, WSS-M2C929-A,
Chrysler MS-6395; GM dexos1TM (supersedes LL-A-025, 6094M
and 4718M). Fortified with detergents that exceed dexos1™ sufated ash specifications.
MIXING AMSOIL
AMSOIL XL Synthetic Motor Oils are compatible with conventional and other synthetic motor oils. Mixing AMSOIL XL Synthetic Motor Oils with other oils, however, will shorten the oil life expectancy and reduce the performance benefits. AMSOIL does not support extended drain intervals where oils have been mixed.
Aftermarket oil additives are not recommended for use with AMSOIL XL Synthetic Motor Oils.
SERVICE LIFE
In gasoline-fueled vehicles, AMSOIL XL Synthetic Motor Oils are recommended for up to 10,000-mile/six-month oil change intervals or longer when recommended in owner's manuals or indicated by electronic oil life monitoring systems. Change aftermarket, original equipment manufacturer or AMSOIL Ea Oil Filter at every oil change.
HEALTH & SAFETY
This product is not expected to cause health concerns when used for the intended application and according to the recommendations in the Material Safety Data Sheet (MSDS). MSDS’s are available upon request at 715-392- 7101 or on the AMSOIL Website. Keep Out of Reach of Children. Don’t pollute. Return used oil to collection centers.
TYPICAL TECHNICAL PROPERTIES
AMSOIL XL 5W-30 SYNTHETIC MOTOR OIL
5W-30
(XLF)
Kinematic Viscosity @ 100°C, cSt (ASTM D-445)
10.9
Kinematic Viscosity @ 40°C, cSt (ASTM D-445)
64.8
Viscosity Index (ASTM D-2270)
160
CCS Viscosity, cP @ (°C) (ASTM D-5293)
5524 (-30)
Flash Point °C (°F) (ASTM D-92)
226 (439)
Fire Point °C (°F) (ASTM D-92)
240 (464)
Pour Point °C (°F) (ASTM D-97)
-43 (-45)
Noack Volatility, % weight loss (g/100g) (ASTM D-5800)
10.5
High Temperature/High Shear Viscosity
@ 150°C and 1.0 X 106 s-1, cP (ASTM D-5481)
3.3
Four Ball Wear Test @ 40 kgf, 75°C,
1200 rpm, 1 hour, scar diameter, mm (ASTM D-4172)
0.44
Total Base Number (ASTM D-2896)
9.0
PRODUCT LOOKUP GUIDES
Auto and Light Trucks
PowerSports Lookup
Small Engine Lookup
TRICO Heavy Duty
FILTER LOOKUP GUIDES
Vintage Vehicle
Heavy Duty Lookup
PERFORMANCE TESTS
View Results
CROSS REFERENCE GUIDES
Master Filter Cross
NGK Plugs and Wires
INSTALLATION INFO
By-Pass Filters
WIX Cabin Air Filters
MANN Cabin Air Filters
MISCELLANEOUS
Drain Interval Chart
Gear Lube Chart
Two-Cycle Chart
MSDS Sheets
Last edited by taywan; 05-02-2012 at 06:25 AM.
05-02-2012, 06:24 AM
#20
Now I dont think Id ever go 25k but this is from the signature series oil:
SERVICE LIFE
AMSOIL Signature Series Synthetic Motor Oil is recommended for extended drain intervals in unmodified(1), mechanically sound(2) gasoline-fueled vehicles as follows:
• Normal Service(3) – Up to 25,000 miles or one year, whichever comes first.
• Severe Service(4) – Up to 15,000 miles or one year, whichever comes first.
• In all non-gasoline-fueled vehicle applications, extend the oil change interval according to oil analysis or follow the OEM* drain interval.
SERVICE LIFE
AMSOIL Signature Series Synthetic Motor Oil is recommended for extended drain intervals in unmodified(1), mechanically sound(2) gasoline-fueled vehicles as follows:
• Normal Service(3) – Up to 25,000 miles or one year, whichever comes first.
• Severe Service(4) – Up to 15,000 miles or one year, whichever comes first.
• In all non-gasoline-fueled vehicle applications, extend the oil change interval according to oil analysis or follow the OEM* drain interval.
Last edited by taywan; 05-02-2012 at 06:25 AM.
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