SukhmanC450

2016 C450

How important is it to log your car 1-10??

How often should I do it??

I know I heard you can run up to 35% E85. Is that ok for a stock car??

RichardCranium3

Log 1-10...no idea what you're talking about?

You can blend E85 with regular pump gas. If you're filling a full tank, no more than 5gal of quality E85. I've run at least 35,000mi blended this way trouble free, almost 46k on the car. Edit: all of this on a custom map6 with BCM.

SukhmanC450

I meant out of 1 to 10 how much do you recommend logging the car. And how much difference does the BCM module make from map 5 on 5 gals and how does it work

BMS

No need to log unless you want personalized tuning advice or to see how it's running. The JB4 has active safety systems so it will revert to a safety map on its own if things get too out of whack anyway.