Quote:
. . . Anybody else have similar results with low octane fuel? Whats the best way to raise 90 octane no alcohol fuel to 93 octane?
|
Good info Connor! Hard to find 93 octane non-ethanol gas these days however! I would expect a richer mixture to hurt mileage. I've heard similar stories about better mpg when towing with premium, and I use premium in my truck when towing for that reason. One guy I know towed a ~30' camper with a V-8 Explorer, all the way from S. Fla. to Canada and back. Burned regular going one way and premium on the way back, and said he definitely got better mileage with premium.
Some octane boosters contain ethanol, so I'd stay away anything like that. I recently had to tow my boat about 30 miles and had about 1/2 tank of 87 octane regular in the truck. Didn't want to fill it up with premium just for that short a trip, so I got a quart of some stuff called "Turbo 108" at Pep Boys. It didn't contain any alcohol but it didn't say how much it would raise octane. Recommended dose was 1 oz/gal, so I added enough to treat 1/2 tank and it seemed to work, as it didn't knock at all in OD, which it normally will with 87 octane when towing. I'm guessing it must have bumped the octane to at least 90-91. It was $8.47 to treat 32 gal, which works out to a little over $.26/gal. Bought some 93 octane premium for the car tonight at local Hess station that was $.25/gal more than regular, so doesn't sound like it's any worse of a rip-off than the gas stations IF it gives a comparable octane boost. Of course there's always AV gas at 100 octane if you want to spend over $5/gal!
