I was actually reading the Ester based info.. I get RP for 7 dollars per bottle on post + Motul is 35 here (Forged Price)=hard decision... I just tried AMS and it actually didnt feel as good as RP (I also lost 5-6 whp on dyno after changing to AMS + adding HFCs)..... I spent 70 bucks on that oil change.. This time Im doing it myself and using a K&N oil filter 1008... Price will be about 35 for oil + 15 for Oil Filter= about 55 bucks after using the lift on post(5 bucks).. Saves me 30 bucks from Jiffys 80 Dollar RP Oil change....

 

Hey Sharif, as of right now I am using Mobil 1 but I read about it changing the composition recently and I want to get out of it!

I plan to do mild FI in the future (380-400WHP) as of right now I have intake, exhaust, plenum spacer...I drive my car hard but dont do crazy track events with it.

Is the Motul 8100 Full Synth. 5W40 good for me to start using now?

Thanks

Chad m

 

We track with Motul 300V 100% ester, in either 15-50 or 10-40, depending on the time of the year. IMHO, these weights are better for extreme use and extreme temp.

 

Well I Live In The Florida Keys What Weight Should I Use When Its Always Hot????

 

Thanks Sharif!!! I am excited to replace my Trans fluid with the 300V Motul!!!


CHad

 

As good as oils are today, you should really run no thicker than 5-30. I'm even toying with the idea of running 0-20 synthetic. Thinner oils can dissipate heat much faster than thicker oils as well. Bearing clearances are matched to thinner oils.

my $.02

Mike

 

you kidding? for an FI engine?

 

10-30 full syntethic is perfectly fine even with the extreme heat of arizona...

you coudl run 5w30...but youd end up chaning that oil a li sooner than heavier one....


bottom line is...who ever does install your turbo kit, ask him and take his advice PERIOD

 

No... he's not kidding. 5W-30 0W-20 0W-30 type IV & V synthetics offer great protection at those weights. I run the Motul 300V Power Racing in 5W-30.

JET

 

pop for the royal purple, great products... also use the gear oil for my 6 speed, filled up the pumpkin with the 75 weight gear lube and topped off the radiator with Purple ice can you guess I dig the Royal Purple try em you be convinced

 

I've been using Redline 5w-30 and its been good so far, but are there better options out there? Redline is also pretty pricey in my area.

 

For most of the guys with built motors on here that's not true. Our motors are built with wider bearing clearances than factory specs. Thus a thicker weight oil is a very good idea.

 

+1

The trend is to use a thinner weight for slightly less rotational drag. But with the power levels we are at, I would glad trade 1% power, for better extreme use protection on the track.

Again...just my opinion. When we build the engines, this is what we suggest.....but you should trust your engine builder.

 

+1 but keep in mind when you speak of protection at the track.....i mean most poeple dont track more than 3-4 times a year

at some point its preference.

 

not kidding....

factory clearances are tight these days..... check out this quote from http://www.aa1car.com/library/oil_viscosity.htm
"For sustained high temperature, high load operation, an even heavier oil may be used in some situations. Some racing engines use 20W-50, but this would only be recommended for an engine with increased bearing clearances. Increasing the viscosity of the oil also increases drag and friction, which can sap horsepower from the crankshaft. That's why 20W-50 racing oil would not be the best choice for everyday driving or cold weather operation for most vehicles. The latest trend in racing is to run tighter bearing clearances and use thinner oils such as 5W-30 or 5W-20 to reduce friction and drag."


If you have a engine built with opened up clearances than yes I would go thicker, instead I run a quality synthetic in my cars at the recommended viscosity.

 

+1

 

for stock block FI'ed cars and NA cars 5w-30 full synthetic, or 10w-30 is perfectly fine up out here in the tri-state region.

 

im running the amsoil tso ow30 right now on a greddy tt and stock block, I'm going to be building the block in a few months so which oil should I switch to? I'd like to stick with amsoil as I've heard nothing but good things.

 

for heat/hot weather, beating the hell out of you FI'd car, and track use: 20w-50

 

From the testing we have done (along with GurgenPB) Mobil 1 0-40w seems the be the best oil and has show extremely good test results even after a track event and 3,000 miles of street driving. We have not tested the Motul 300V but we will soon. the Mobil 1 0-40 is completely different than they 5-30 and others since it is a true synthetic and it is a european blend, the Castrol USN HM 350Z speaks of is also great, if you can find it.

-George
GT Motorsports