Thread: Gas Mileage
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Old 04-06-2002, 02:20 PM
suginami suginami is offline
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Join Date: Dec 2001
Location: Southern California, U.S.A.
Posts: 8,508
It might be a good idea to replace your O2 sensor anyways, as 60,000 miles seems to be its useful life.

But in my experience and those of others I've talked to, a bad O2 sensor will result in huge drops in mpg, like down to 10 mpg. A drop from 21.5 to 16.8 to me doesn't seem like a big enough drop, but who knows?

It may be the gasoline, it may be harder driving...
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Paul S.

2001 E430, Bourdeaux Red, Oyster interior.
79,200 miles.

1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".
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