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owensexport
12-11-2004, 03:04 AM
Got 45 MPG on my first tank of premium gas since
the engine rebuild!!
Adam
12-11-2004, 10:49 AM
Thats not bad considering the octane of the fuel in the states. Unless you are using an octane booster of some sort.
tinytim
12-11-2004, 10:57 PM
Not bad after an engine rebuild either, things may be a bit stiff.
owensexport
13-11-2004, 03:04 AM
Our premium is rated 91 octane.....
Did not run any additives... dont hear
any detonation from the engine. Do you suggest
I run a octane booster?
tinytim
13-11-2004, 10:03 AM
Personally I'd say yes, having switched from 95 to 97 I am getting a genuine 50 miles extra per tank (How much of that is down to other additives I can't say but it's an impressive improvement for no effort). I was getting detonation on acceleration with a project A chip and this cured it.
It's worth a go just to see if things improve.
owensexport
13-11-2004, 06:50 PM
I will run a few more tanks through to establish a baseline and to get the engine fully broken in and then try some octane booster.
Results in a few weeks!
Adam
13-11-2004, 07:03 PM
Wow 91 is very low. Is that the expansive fuel? I would recommend you try a booster and see the difference. Is the car nippy enough?
owensexport
13-11-2004, 07:38 PM
91 is the highest rated standard fuel in California.
Some stations quote a 92 octane but I suspect it is just the same
stuff and they mix it with water or human waste products:explode: !

We have pretty tough emissions laws here and they have tried to reformulate the fuels to meet the standards.
I dont know why that has affected the octane ratings, but we seem to have the worst fuel in California....

I think it runs pretty good, I am used to driving diesel trucks so anything that is gasoline seems peppy to me!!
Dont hear any detonation from the engine so far.