This is all new to me so I hope i do it right. My mileage on my car seems to be getting worse and worse. I get the oil changed every 3000 mies and Dont seem to have any other problems. Does anyone have any ideas to what it could be. or what to look for, my local guy who does my oil is not a audi guy so I dont think he would know what to look for.

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2000 A4 B5 type Quattro 5 speed stick

Pop your airbox open and make sure the air filter is in good shape. And I would think about changing the MAF sensor and fuel filter.

That's what i'm planning on doing pretty soon, because i've been getting like 20/24 lately rather than the 21/29 claimed on the window sticker. It should help to some degree.

Anyone else notice a difference in performance or mileage after replacing them?

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-Alan

99.5 A4 Avant 1.8t Sport - 5 speed with Quattro
::GIAC software::Magnaflow exhaust::EvoMS diverter::AWE boost gauge::

hey guys i need help too because when i fill up with premium gas the computer says im getting 25-30 mpg but ounce i hit the halfway tank it drops and says im only getting 5-10 mpg no matter how slow i drive i think i have something wrong but dont no where to look????

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Y2K Audi A4 2.8 V6
RS4 Grill->Chrome Intake->Debadged

cmon guys help us outt

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Y2K Audi A4 2.8 V6
RS4 Grill->Chrome Intake->Debadged

Same thing here. I'll get about 150 miles the first half tank, then only 100 miles to empty. I've learned not to trust the gauge.

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Ecodes w/6K HID~20% tint~M3 spoiler~RS4 grille~Painted lowers~Brembos w/SS lines~Custom Remus/Vibrant Exhaust~CAI~Sirius...
GIAC Tip Chip FS, pm me

do you think it could be o2 sensors sparks or filters cause if soo ima get a tune up...?

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Y2K Audi A4 2.8 V6
RS4 Grill->Chrome Intake->Debadged

Your first step should be to get your fuel filter changed. It is the cheapest way to start and costs only 80 bucks at dealership. If problem stays, then its either your MAF sensor or your precat oxygen sensors. I am assuming none of you have vag-com to get fault codes? Hope this helps

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--d3

99.5 2.8quattro 5-speed
-- SpeedTunning Chip
-- S4 Seats
-- Stock Sports Suspension

well sine i got the car the light only came on ounce and had it cleared and hasnt came on since i believe it was a misfire.....and if you have the dealer do the oil filter how much will they charge $80 or is that just for the part?

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Y2K Audi A4 2.8 V6
RS4 Grill->Chrome Intake->Debadged

new air filter, spark plugs, seafoam, fuel filter, clean your maf. if your still getting bad mileage after that change the o2 sensor

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i just ordered a cold air but havnt istalled it yet but should i get a k and n air filter also.....plus i seafoamed my car last week but only put a can in the gas tank and i know people put it in their oil and vac lines but is it necessary?

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Y2K Audi A4 2.8 V6
RS4 Grill->Chrome Intake->Debadged