Quote:
Originally Posted by Petah78
Yeah, i have been using PUP (pennzoil ultra platinum) 5-30 on the gen1 and will likely continue to do so with the FA24. Project farm did an engine oil shoot out a while back and it barely came 2nd behind amsoil. The UAO which came back after 2 track days were spectacular. Thread is here if you are interested:
https://www.ft86club.com/forums/showthread.php?t=146810
I just don't want to void the warranty if 5-30 is not spec'd for the engine. |
Nice, thanks for the data point. That UOA does look very solid. Out of curiosity, how many track days had the engine seen at that point?
I think the only thing that concerns me about PUP 5w30 is its KV 100 value is lower than most other 30 weight oils I've looked at:
PUP 5w30: 10.3
Castrol Edge 5w30 EP: 10.8 (2.9 HTHS)
M1 5w30: 11.1
M1 0w30 AFE: 11.5
Castrol Edge 5w30 LL: 11.6 (3.5 HTHS)
Pennzoil Euro L 5w30: 12.6 (3.5 HTHS)
I'd bet any quality synthetic 30 weight oil would be fine though. BTW I get the sense that Subaru is much more likely to void the warranty for track use than for using a 30 weight oil.