Please record engine water temps on track if you are running a stock engine. My targets are not to exceed ideal temps - so far max temps โ212F ( honda ultimate 0w-20 7.99 cst at 100c ) and 217F( penzoil ultra platinum 0w20 ~ 8.3-4 cst 100c ) at COTA ~ same ambient temp full out on advanced...
Good valid points everyone - letโs stick with the data. Agreed sheer stability really depends on the formulation of the motor oil so far from everything weโve tested Motul Power stayed within viscosity grade extremely well.
0W-20 vs 5w-30 Lakespeed Junior Latest
Sheer Stability is the most important and running that oil while it's within spec.
Looks like 5W-20 is the most stable. Index viscosity modifiers are the enemy. The closer the numbers are before the W and after, the better the stability of the oil -...
Thanks.. Let's help each other stay focused on the Oil Analysis Data.. Facts have no feelings... It's the only truth that keeps us headed true north....
Keep the data coming... thanks everyone!
Interesting... Does anyone know if the variable oil pump programming is different also on the Type R with those other countries recommending 5w-30 vs 0w-02?
There are lot of factors and variables.
Application dictates formulation + oil change intervals.
All engines oils start to deteriorate and have contamination after 2000 to 2500 miles.
If you want your engine to last forever, 2-3 track days and 2000 miles seems to be the magic proven number...
Looks good.
The golden rule for max longevity is changing the oil every ~2500 miles.
I ran 2 hard track days at COTA and 1 hard open track day at G2 Motorsports on Pennzoil Ultra Platinum 0W-20 .... Should have results next month.
Based on what I'm seeing in the data the Pennzoil Ultra...
Interesting observation, today ran COTA hard in advanced group, and with the pennzoil ultra platinum 0w-20 which is slightly thicker higher ~ 8.3cst vs 7.99 cst honda ultimate and the ambient temp was a few degrees cooler than last time, it ran at 217F max water temp vs last time at 212F. I was...
Hey, since you're going to try 5w-30 next, order your Motul 300V 5w-30 from FCPEuro, it's basically a hack - free oil. You purchase it once, drain it and ship it back to them, and they will credit you, and you can do that like 4-5 times a year. They honor that through their lifetime policy.
Thank you for the feedback and you have good points.
My personal Goals are to push my stock type R on track and optimize these three variables.
1) Best UOA data with lowest metal wear scores
2) Coolest Engine Temps
3) Maximum horsepower efficiency
Currently only the 0w-20 engine oils with...
The purpose of this thread is to follow what the data says. If you have data that proves or disproves certain theories, please provide it for the community. The oil UOAs and water temp data is not AI generated. Itโs real experiences of real world use on track.
There was a myth and a lot of...