Using 89 Octane.....
02-10-2007 | 02:05 AM
#41
Originally Posted by pooked
highest i can find 91+ the only other thing i can run into is jet fuel and i heard thats not good for the engine lol...
Ive yet to figure what all the octane hype is about , the manuel says you can use 87 and as low as 85 in your car . The higher the octane does not mean you make more power, but only the potential to make more power if you tuned for it. The person who says they run 100 in there car once and a while for whatever reason is only adding carbon to his combustion chambers , exhaust and raw fuel to his cats. High octane when not needed is as stupid as the JDM hype.
02-10-2007 | 02:06 AM
#42
Originally Posted by pooked
highest i can find 91+ the only other thing i can run into is jet fuel and i heard thats not good for the engine lol...
Ive yet to figure what all the octane hype is about , the manuel says you can use 87 and as low as 85 in your car . The higher the octane does not mean you make more power, but only the potential to make more power if you tuned for it. The person who says they run 100 in there car once and a while for whatever reason is only adding carbon to his combustion chambers , exhaust and raw fuel to his cats. High octane when not needed is as stupid as the JDM hype.
02-10-2007 | 03:11 AM
#44
Registered User
Joined: Dec 2005
Posts: 4
Likes: 0
From: Ellwood City PA
Premium vs. Mid
I look at it this way: The difference between mid and premium is 10 cents. We get 20+ MPG, so super costs less than 1/2 penny per mile over mid grade and only 1 penny per mile over regular. That is a small price to pay for performance and peace of mind.
02-10-2007 | 03:43 AM
#45
Read your manual...
Then...
Originally Posted by 06 Nissan Manual p9-3
FUEL RECOMMENDATION-Use unleaded premium gasoline with an octane
rating of at least 91 AKI (Anti-Knock Index)
number (Research octane number 96).
If premium gasoline is not available, unleaded
regular gasoline with an octane rating of 87 AKI
number (Research octane number 91) may be
temporarily used, but only under the following
precautions:
Have the fuel tank filled only partially with
unleaded regular gasoline, and fill up with
unleaded premium gasoline as soon as possible.
Avoid full throttle driving and abrupt acceleration.
However, for maximum vehicle performance,
the use of unleaded premium gasoline
is recommended.
CAUTION
-Using a fuel other than that specified
could adversely affect the emission
control system, and may also affect
the warranty coverage.
-Under no circumstances should a
leaded gasoline be used, because
this will damage the three-way catalyst.
-Do not use E-85 fuel in your vehicle.
Your vehicle is not designed to run
on E-85 fuel. Using E-85 fuel can
damage the fuel system components
and is not covered by the NISSAN
vehicle limited warranty.
rating of at least 91 AKI (Anti-Knock Index)
number (Research octane number 96).
If premium gasoline is not available, unleaded
regular gasoline with an octane rating of 87 AKI
number (Research octane number 91) may be
temporarily used, but only under the following
precautions:
Have the fuel tank filled only partially with
unleaded regular gasoline, and fill up with
unleaded premium gasoline as soon as possible.
Avoid full throttle driving and abrupt acceleration.
However, for maximum vehicle performance,
the use of unleaded premium gasoline
is recommended.
CAUTION
-Using a fuel other than that specified
could adversely affect the emission
control system, and may also affect
the warranty coverage.
-Under no circumstances should a
leaded gasoline be used, because
this will damage the three-way catalyst.
-Do not use E-85 fuel in your vehicle.
Your vehicle is not designed to run
on E-85 fuel. Using E-85 fuel can
damage the fuel system components
and is not covered by the NISSAN
vehicle limited warranty.
Originally Posted by 06 Nissan Manual p9-4
Octane rating tips
Using unleaded gasoline with an octane
rating lower than recommended can cause
persistent, heavy spark knock. (Spark
knock is a metallic rapping noise.) If severe,
this can lead to engine damage. If you
detect a persistent heavy spark knock even
when using gasoline of the above stated
octane rating, or if you hear steady spark
knock while holding a steady speed on
level roads, have your dealer correct the
condition. Failure to correct the condition
is misuse of the vehicle, for which NISSAN
is not responsible.
Incorrect ignition timing will result in knocking,
after-run or overheating. This in turn may cause
excessive fuel consumption or damage to the
engine. If any of the above symptoms are encountered,
have your vehicle checked at a
NISSAN dealer or other competent service facility.
Using unleaded gasoline with an octane
rating lower than recommended can cause
persistent, heavy spark knock. (Spark
knock is a metallic rapping noise.) If severe,
this can lead to engine damage. If you
detect a persistent heavy spark knock even
when using gasoline of the above stated
octane rating, or if you hear steady spark
knock while holding a steady speed on
level roads, have your dealer correct the
condition. Failure to correct the condition
is misuse of the vehicle, for which NISSAN
is not responsible.
Incorrect ignition timing will result in knocking,
after-run or overheating. This in turn may cause
excessive fuel consumption or damage to the
engine. If any of the above symptoms are encountered,
have your vehicle checked at a
NISSAN dealer or other competent service facility.
02-10-2007 | 06:42 AM
#46
Guest
Posts: n/a
Originally Posted by terrasmak
Jet-a is basically refined diesel , and no its not good for your motor.
Ive yet to figure what all the octane hype is about , the manuel says you can use 87 and as low as 85 in your car . The higher the octane does not mean you make more power, but only the potential to make more power if you tuned for it. The person who says they run 100 in there car once and a while for whatever reason is only adding carbon to his combustion chambers , exhaust and raw fuel to his cats. High octane when not needed is as stupid as the JDM hype.
Ive yet to figure what all the octane hype is about , the manuel says you can use 87 and as low as 85 in your car . The higher the octane does not mean you make more power, but only the potential to make more power if you tuned for it. The person who says they run 100 in there car once and a while for whatever reason is only adding carbon to his combustion chambers , exhaust and raw fuel to his cats. High octane when not needed is as stupid as the JDM hype.
02-10-2007 | 12:38 PM
#47
Registered User
Joined: Jul 2005
Posts: 854
Likes: 0
From: California
There are plenty of places along Interstate 5 between Los Angeles and San Francisco where you will find 91 octane gas. I don't think a scenario where you can't find or get to a station with 91 will occur. Enjoy the trip and watch out for the CHP!!
02-10-2007 | 03:38 PM
#50
why do people have to argue over ten cents per gallon? BUY PREMIUM GAS 91 OR 93 END OF STORY!! ...unless of course you are tuned for higher octane and your cars performance requires it!
this 
this
02-10-2007 | 05:38 PM
#53
Registered User
Joined: Jun 2006
Posts: 3,595
Likes: 0
From: Hood Canal, WA.
For someone who may not have got an owner's manual with their car and isn't familiar with interstate travel,it wasn't a bad question. There are a lot of people who put premium fuel in their average cars that waste money. This isn't an average car. I've never been to an interstate fuel stop that didn't have at least 91 octane on I-5 or even hwy 101. Jet fuel(basically kerosene) will f.... your engine up, and the only 100 octane I've seen on the west coast is Av-gas which, if leaded, will mess up your emission system.
02-10-2007 | 07:17 PM
#54
86,88,90 octane where i live. You dont have to use 91+ you can use 88 or 89 the ecu will just retard the timing... I used 86 in my 3.5se altima for 3 years with no problems at all. That car didnt have one problem but the Z is full of them.
02-10-2007 | 07:32 PM
#55
Registered User
Joined: Jul 2006
Posts: 75
Likes: 0
From: Breaux Bridge, LA
Why buy a sports car and put gas that won't give peak performance? Buy a chevy aveo if you want to save money. And on the topic of the Altima, its engine isn't tuned the same as the 350's engine. You don't need the expensive gas in an altima. Even though it is the same displacement as the Z, the engine isn't tuned the same.
02-10-2007 | 07:53 PM
#56
Guest
Posts: n/a
Originally Posted by KikoBlaze
Out of curiosity....would it be a problem if we ran 103 octane all the time? (I have an auto '06, stock).
02-11-2007 | 11:00 AM
#58
the higher the octane the more resistant it is to burning. the only time you need higher octane is when your cumbustion chamber is running hotter like when you are running higher compression or turbocharging your engine. that way the fuel will not precombust due to the heat.
