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Mileage drop

549 Views 4 Replies 4 Participants Last post by  karmutzen, 
K
210,000 miles, mileage dropped to 14-15 mpg. Changed plugs, air filter. Not throwing any codes. Today I changed the two upstream 02 sensors. We'll see what happens.
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Time for compression tests, if ok, walnut blasting to clean the internals. New rings, all new tubing associated with the engine, other small items.
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