Old Oil & Old Fuel Filter effect on MPG

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Apr 18, 2007 | 05:10 AM

Mark Hodowanec

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From: VA

Old Oil & Old Fuel Filter effect on MPG

I know that having a dirty air filter will drop MPG, what about a old fuel filter & old engine oil?

Apr 18, 2007 | 05:39 AM

P.J

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From: Port Deposit, MD

I don't know about the oil, but an restrictive air filter can hurt your MPG's.

Apr 18, 2007 | 06:11 AM

bulabula

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From: Eastern & Western Merryland

Quote:

Originally Posted by Mark Hodowanec

I know that having a dirty air filter will drop MPG, what about a old oil filter & old engine oil?

I don't think old oil or oil filter will impede fuel mileage, nor would an old fuel filter unless its sufficiently clogged to cause the engine to run poorly. The thread title also mentioned fuel filter.

YMMV, but I've never noticed a fuel mileage improvement after an oil change or fuel filter change.