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Audisport0808
05-03-2007, 01:32 PM
I have a b5 2.8qm, and feel like my gas mileage is going down the drain/ car is felling bit sluggish lately- what can I do- no too experienced with engines- to clean up the engine.. i know i can seafoam and change oil, and other liquids- but what else? thanks

pac1085
05-03-2007, 01:34 PM
how are your pre-cat o2 sensors? how many miles? if they have more than 75k , replace them.

Audisport0808
05-03-2007, 02:10 PM
i just had one replaced a month ago...

aytheory
05-03-2007, 04:27 PM
Auto Rx treatment, B&G products that are offered are the top two at restoring mpg.