1
FE Technical Forum / Oil. 10/30 vs 10/40 w
« on: February 11, 2017, 12:10:19 AM »
I have an all aluminum 496 fe. I use brad penn oil. Would you recommend the 10/30 or the 10/40 or does it matter. I do some road racing and auto x about 70% street 30% racing. I live in Las Vegas.