Originally Posted by
DragonSlayer129!
I am waiting for warmer weather and clear roads I will then data log 91 octane in the V8 vs 33% E-85/91 octane and post results. After I chatted with Jim the other night I did some research as well and lots of folks are doing this and I can't find a reason not to try it.
i will note that the other day I filled with the usual 3 gallons of e85 and 7 of 91 and after about 10 minuets of casual driving got a CEL for “System too lean” for both banks 1 and 2. I filled the rest up with 91 to even out the mixture. Reset the CEL and it didn’t come back.
Unsure if that hat is actually a problem or if the computer is seeing it lean because it’s expecting regular gasoline to be used.
any thoughts on this would be great!