Help Me Get Better MPGs

[Pushit2.0]

unplug 2 of the fuel injectors, one on each bank, it will run ok but not have a lot of power, and possible use 1/2 the fuel.

~John

[iceminion]

Originally Posted by Pushit2.0

unplug 2 of the fuel injectors, one on each bank, it will run ok but not have a lot of power, and possible use 1/2 the fuel.

~John

Thats funny, I was under the impression that a car, any car, would be most fuel efficent running at 20% throttle on all 4 cylinders rather then 40% throttle on half dead cylinders.

Who knows! you might be onto something, just like that DEI guy

[xveganxcowboyx]

Originally Posted by Pushit2.0

unplug 2 of the fuel injectors, one on each bank, it will run ok but not have a lot of power, and possible use 1/2 the fuel.

~John

On a four cylinder?


My stepfather has a newer legacy with the 2.5 liter and pulls high twenties or even thirties on the highway. He usually cruises less than 65 on the road he usually drives, but can still get high twenties even at 75 or eighty. Your gearing might be steeper though, which would hurt your high speed mileage some.

The tired engine may be the culprit. Any compression numbers?

[Andrew7dg]

Originally Posted by Pushit2.0

unplug 2 of the fuel injectors, one on each bank, it will run ok but not have a lot of power, and possible use 1/2 the fuel.

~John

yeah you are joking on that right?... because the cylinders that aren't firing will be adding drag on the engine making it less efficient.

Back on topic.
take as much weight out of the car as possible. Stuff adds up in weight in a car.

And I agree with driving at closer to 65. Even in my DSM manual it states to get the best MPG, drive 55 miles an hour. I got 23-24 with mine with very conservative driving this winter. However I like my dsm so the next tank of gas went down pretty fast.