Fuel filter and millage


#1

By keeping a new or clean fuel filter help millage or suck up more gas?


#2

On any computer controlled car since the early '80s it will make no difference until the filter is so clogged that the engine is starved for fuel


#3

Help milage. But the real reason is to keep the fuel pump from working so hard, which lengthens its life.


#4

It will have no measurable effect on mileage. A dirty filter will reduce mileage, but by so little you could not measure it. However it can wear/damage the fuel pump and that can cost you a few $$$


#5

No effect on mileage. A badly clogged fuel filter will make the car drive poorly, but a mildly dirty fuel filter will have no discernible effects, either on the engine or in fuel economy. A new or clean fuel does not suck up more gas than the engine needs.


#6

1 thing I always keep in my truck is a fresh, new fuel filter for when the occasion arises. Diesel is a bit different than gas, but my mileage goes to pot on a bad fuel filter in a hurry. I don’t know why, just that it does.

There’s 2 signs in a diesel that a filter needs changed: Step on it and now power = air filter Fuel milage drops about 4 mpg unexplained = fuel filter.

On my Fords, I changed fuel filters about every 15,000 miles, with the Dodge Cummins, I change it every oil change or about 6000 miles.

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