Quote:
Originally Posted by Campo
Most of our collective community track testing has proven the stock fill and weight to still be best.
But you could ask five different people and get 10 different answers about oil. 
Tapatalk - because smoke signals would be too easy. |
Track tests on diff weights came back recently... I'll try and find the data sheet post here if I get some free time today.
Based on 7 laps on track, the "best" was 5w30. It held the needed psi once up to max heat.
If forced induction, w40 looked to work better. Personally I use the european blend of mobil 1 0w40. Car starts up nicely, and once up to heat still fairs well.
Best oil is always the oil you change
However if you are not tracking, 0w20 should be fine. 5w30 might fair well here in our hot summers, especially if you like to push the gas at times.