meranamjkr

Government just mandated min 10% ethanol fuel in all gas stations. Wanted to see if any changes will need to made while using the gas mix (e.g. oil filters etc.)

Does this effect higher compression engines and or turbo engines more?

saturnal

get a little more power since ethanol is about 105 octane. So you'll use even MORE gas.

Alex
2000 A6 2.7TQM

Just Me

up to about 15%, no changes generally required. Above 15%-20%, re-tuning required (e/g/: "fglex fuel" in GM parlance). however, there are differences:

1. significantly higher octane ( good)
2. significantly lower specific energy load (bad, lower fuel economy)
3. less hygroscopic - wont absorb water, which can lead to collection of water, which is bad (add dry gas)
4. On older cars (not C5s) some issues with seal compatibility, or at least rumours. i recall running 20% gasahol in my 1966 dodge with excellent resulted (cured pinging in the ancient girl)

Grant

forcefedfreak

No problems. I personally hate it because it tends to drive down MPG and throttle response suffers.

audikillsbmw

Same here... 10% Ethanol content.

audikillsbmw

We've had 10% for a long time. No problems here..