jb997

Hey guys, I’ve been running E20 on my tuned 997.2 C4S for a while, from what I’ve read we should not exceed 10% ethanol. Is it okay if I keep running it or should I switch to RON95 (best non ethanol fuel my country offers)

318touring

E10 is fine but E20? I don't know. If it was me I'd switch to 95RON, at least the engine will adjust to that.

jb997

Well E20 is almost equivalent to RON98, however reading stuff like bore score scares the crap out of me . I've been using E20 for years on all my cars without any problems.

Petza914

I prefer E0 as long as I can find it in 93 octane.

NAMR6MT

Doesn't the E stand for Enemy as it pertains to the M9x?