A4 (B5 Platform) Discussion Discussion forum for the B5 Audi A4 produced from 1995-2001 B5 FAQ

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Old Feb 23, 2005 | 07:58 PM
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A4NJ01's Avatar
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Default gunk

I got my oil changed recently and the mechanic came over and showed me this black gunk on the oil cap. He said that with synthetic oil it will go away over about 3 or 4 oil changes. Thats ok, but is there anything I can do to clean that out quicker?
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Old Feb 23, 2005 | 08:02 PM
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Default Some people have used AutoRX others have used Seafoam

Be carefull. Engine treatments can eat away at seals and gaskets so you could end up with an oil leak if you use something too abrasive. Also a lose impediment will burn off and go out with the exhaust. In a NA engine this is no problem. If you drive a turbo charged car, the impediment could rip a hole right through the hot wheel.

Hope this helps.
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Old Feb 23, 2005 | 08:14 PM
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Default Re: Some people have used AutoRX others have used Seafoam

How would I use the treatment? I dont really know that much about cars, im just learning, this is my first car.
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Old Feb 23, 2005 | 08:17 PM
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Default

I used SeaFoam with 4 quarts of oil, drove until the oil got up to temp then drained.
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Old Feb 23, 2005 | 08:55 PM
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Default seafoam is pretty neat

my gas mileage went up after I used it on the oil. I thought that was pretty crazy.

The can tells you how much to use per quart of oil you have. Just pour it in, run the engine on idle for a bit (oil goes to nominal temp, 20 minutes, whatever...) and then change the oil.
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Old Feb 23, 2005 | 09:52 PM
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Default The instrucions are on the bottle.

Seafoam works different than AutoRX. AutoRX is just an oil treatment. You change the oil, add the treatment, then drive 1500 miles and then change the oil again.

Seafoam is a cleaner that can be put in the itake, or added to the gasoline and so on. I dont know much about Seafoam, but AutoRx seems safe.

The AutoRX website has info. I have never looked for a Seafoam website.
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Old Feb 24, 2005 | 06:19 AM
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Default I wouldn't drive the car with seafoam in the oil. Thins it too much

just let it idle like manualAvant said.
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