Question about 2008 Volkswagen Passat Sedan

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Parent's bought 08 passat with 40000 mi. Discovered it burns 1 qt in 800 miles. Dealer and VW says this is normal. Is this correct?

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If the engine was not broke in properly, oil will get past the rings. I had a car that did this for years. It will do better with a higher quality oil, but I wouldn't say it's normal.

Posted on Aug 24, 2010

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1 Answer

Why does my bmw 650 445 v-8 uses 1 qt. every 3500 mi.? Is that normal?


Completly normal. Most european cars consume 1qt for every 3000 miles

Jun 13, 2014 | 2004 Volvo S60

1 Answer

How much oil should my engine use between oil changes? The deaker said it is normal to use more than 1 qt. I usually have to replace at least 2 qts. 2o T engine


No fluids are consumed on a motor vehicle
with the exception of maybe a 1/2 Qt of oil
after 8000 miles

I have heard others tell of dealers, putting out that info

Common Sense. You machine an engine block,
you invest millions into R&D, only to sell the vehicle
and expect the comsumer to except that

The dealer is full of it

No vehicle should use hardly any oil between changes

Dec 19, 2010 | 2008 Volkswagen Passat Sedan

1 Answer

Starting using oil abt 125K miles, abt 1 qt per 1200 mi. Dealer recommended repl PCV valve and hoses which we did. Repair had no effect and car now using abt 1 qt every 800 miles. No leaks detected.


is the car smoking blue or is the oil leeking out ?

if the is consuming oil by buring it while driving the faults are either :

Valve seats / Burnt valves
Piston Rings
or sump compression which can force oil into the combustion chamber causing it to burn it and expel the burnt oil via the exhaust system.

Either way, its going to pretty expensive on a 2002 5 series.

Oct 11, 2010 | 2002 BMW 5 Series

3 Answers

Losing oil, no visible leaks. 120,000 miles


Hm. In my experience if you lose oil at the rate of 1 qt. per 800 mi. it's going somewhere. Actually, if you lose 1 qt. per 1000 mi. and change your oil every 3,000 mi. it's under $10 in oil you have to buy to keep it topped off, and some places say that's there's nothing wrong.

But, your case is a little more serious.

I think that it's probably leaking past the rings and/or valves and the catalytic converter is eating up the oil, so you see no blue smoke, like you would in a car that has no converter (I'm assuming you have a catalytic converter on your car as my 1981 Honda had).

After 100,000 mi. little irregularities in the piston cylinders can develop, and seals can gradually degrade. So, this is normal for that kind of mileage, although there are people who get over 400,000 mi. on their cars with just regular maintenance and driving highway mi.

You might want to try one of those slower burn oils designed for cars with 75,000 mi. and above. That might slow the burn off of oil down to acceptable levels.

Good luck with it.

Jul 26, 2010 | 2001 Honda Civic

2 Answers

How much oil usage is normal?


1 quart every 2000 miles. Not all cars are created equal. The same model may burn alot less or even more.

Apr 18, 2010 | 2003 Ford Escape

1 Answer

What could cause my engine to consume oil between oil changes, it uses about 3 quarts between oil changes.


under warranty? how many miles? what engine? what kind of driving do you do? what brand and weight of oil do you use? is all this well documented?......I think 1 qt per 800 or 1000 miles is considered normal, but I would talk to the service manager at the dealer about it. theres got to be a problem with that.

Oct 03, 2009 | 2007 GMC Sierra 1500

1 Answer

VW P421 code


This is a common problem with V6 Passats. VW put out a TSB on this a few years ago.
The code is telling you that your catalytic converter (driver's side, I think) is bad. It's more than likely not bad.

VW put out a TSB on this a few years ago. TSB 05-13. The cause of the error code is basically an over sensitive ECU (computer of car/engine) and the fix is to have your ECU flashed with the latest and greatest software. Depending on your mileage they might do it under warranty - you'll have to check.

It's still possible that it might be a bad catalytic converter - and the dealership might try to tell you that either way. Call VW (1-800-822-8987) and ask them about the TSB (I couldn't find it online).

Tell the dealership you want the ECU flashed - it's much much cheaper than a cat. No sense replacing it if it's not bad
There is a federal warranty on catalytic converters - 8 yrs or 80k miles...

Hope this helps!
Please rate/vote for me!

Jul 17, 2009 | 2002 Volkswagen Passat

1 Answer

Vw passat brakes! please help!


get your brakes done at a local tire place and not the dealer.  It sounds like you need a new mechanic.  Got to cartalk.com as they have a list of good mechanics in your area.

Mar 30, 2009 | 2002 Volkswagen Passat

2 Answers

Oil usage in 2006 passat 2.0 turbo


I had the same problem with my wife's 2006 passat turbo. We lost 2.5 quarts in 3000 miles and the warning light came on. They put us on a 1000 mile oil test and I lost 1.8 more quarts of oil. They finally agreed to replace the rings. Service tech told me that the factory rings are defective, they begin to lead after about 25,000.

Jan 28, 2009 | 2006 Volkswagen Passat

1 Answer

Oil pressure stop motor


My 2003 1.8L Passat at 62K indicated Oil Pressure, Stop Engine. I had been low on oil for longer than I realized, though the car didn't indicate to me anything. I added a quart 5-40 synthetic as usual, and about 300 miles mid way on a road trip is when the warning lit up!
I had been to the dealer last year and there was a mention of sludge developing in these cars. They suggested I bring it in to remove sludge but life got busy, and it never happened. Evidently this model Passat is notorious for this oil sludge problem.
My Passat needed a new oil pump $800 later half way between destination and home. Luckily I was in a town with a 30 VW mechanic who was very good. The sludge (carbon deposits) had blocked pump pickup. Oil level was good. The computer didn't show anything, but the oil pressure test discovered PSI went down when RPM's went up. Not good.
This problem is very serious as it has ruined engines. I guess I was lucky in the fact that nothing else was damaged. So you may look into this build up. It sounds terribly familiar.

Dec 14, 2008 | 2003 Volkswagen Passat

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