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Oil Usage between changes.

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I am curious about something. I have a '08 Cayman S with 25000 miles and I am starting to notice oil usage between changes. When I checked the oil level a month ago, I noticed it being one notch down from full, so I added a quart. Yesterday, I noticed again that the oil level is down a notch again. I asked a dealer service rep about this and his response was that it was normal for the car to use a quart or more a month! I am having a hard time signing off on that statement so I just wanted to throw this out there and see if anybody is experiencing the same issues. Thanks in advance for your responces/advice you share.

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  • Admin

:welcome:If you check your owners manual you will see that up to 1 quart in 600 miles is considered "acceptable" by Porsche."It is normal for your engine to consume oil. The rate of oil consumption depends on the quality and viscosity of oil, the speed at which the engine is operated, the climate, road conditions as well as the amount of dilution and oxidation of thelubricant.If the vehicle is used for repeated short trips, and consumes a normal amount of oil, the engine oil measurement may not show any drop in the oil level at all, even after 600 miles (1000 km) or more."You also want to be carefull about the "top bar" - it is easy to overfill as there is no warnings for over the top bar.I personally keep my car 1 bar down and only add oil (1/2 quart at a time) if it drops much lower.

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  • 1 year later...

Loren: Good to know...have a 987 MY 07, 21Kmiles: never had the "bar" drop between oil changes....after last Oil chance, took a high speed, (triple digit) long distance run through the twistys of the back country....next oil check, down a bar....good to know Porsche says a quart in 600 miles is "acceptable"....Cripes, in college, I'd fire my 57 Ford if it burned oil like that....jb

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