Quote:
Originally Posted by jkv45
Not sure how that relates to our system of octane measurement, but running higher octane than the manual suggests is not an advantage, and will cost you mileage and power. Gas with ethanol will cost you mileage, but a F.I. engine will correct for the leaner mixture so it will run about the same.
Run higher octane "Premium" only if you need to get away from gas with ethanol.
|
We have mainly 2 options: 95 octane or 98 octane. It's not easy as a consumer to know exactly the ethanol content, and it seems like an increasing amount of ethanol is blended into the fuels.
Up till recently, rumours said that the 98 octane was ethanol free. Most 95 octane here (Norway, Scandinavia) probably contains at least 5 or 7 % ethanol. To have as little ethanol as possible in the fuel, I choose 98 octane.
I hope the F.I. system can correct for the actual amounts of ethanol that we
presently have to deal with. I have read that it's not always the case.