JH>Hello, ALL.

JH>Our 'family' car here is this older Buick sedan - a '98 LeSabre. Engine
JH>is the GM 3.8L V6. (I've had several cars with this block over the
JH>years, with generally good service).  IMO it gets decent gas mileage on
JH>the recommended 87 octane. I bought gas here last week at Costco, and it
JH>was 2.03 for 87 and 2.13 for the 91 octane. (A bit less than 5% price
JH>premium). This is unlike a lot of the commercial gas sellers, where the
JH>high-test is typically $0.20 or so more than the regular.

JH>I don't take many long trips, mostly local but not much stop and go
JH>in heavy traffic. I was thinking if I'm averaging 20mpg now, and could
JH>get 21.0 or better with the higher octane with my type driving of it,
JH>I'd be doing OK.

JH>I'm surprised I haven't seen any articles about this situation. My
JH>question- might I be able to get more than 5% mileage increase if I
JH>start running the high-test?

Not that I have heard. But we did have one Ford Service Manager
advise our Seniors group that a tank of high test every now and
then was more helpful cleaning the fuel injectors than any thing
one could buy of the shelf.

BTW we just spent $1,600,00 to take care of our 94 Olds Cutlass
leaking top gasket, water pump and rear brakes (we will do the
front brakes in the fall inspection)(if it moves it wears 8-).
So we Olds folks should be all set for another 10 years!

Ciao. Ack.

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