E85 on stock fuel system?
 

Can we run e85 safely on stock fuel system eg. fuel pump injectors? of course ill have a flex fuel kit and tune but i was just wondering if stock pump and injectors can handle e85.

No problem with mine so far. Using it for a year or so, straight e85

I’ve been on E85 for 6 months now with no problems. I don’t even have a flex fuel kit. I just can’t switch between petrol and E85 but luckily we have E85 all over town so it’s not an inconvenience at all.

Many folks are 4 years in with no problems.

Been using it in Socal for 2 months or so. cold start issues if weather is cold, but other than that, or after its warm the tune rips

4 years and counting

Over five years full time E85 , no issues over 60,000 km quite a few track days

5+ years of E85, no issues and I am not Flex Fuel.

I’ve been switching back and forth from E85 and 91 petro for almost 6 months. I have flex fuel kit and tune as well. I don’t see any problem so far except whenever I’m on E85, I’m hearing this high pitch song from the engine, maybe from the fuel system I don’t know? Is it bad to switch fuel every 2-3 tank even with flex fuel kit?