bought a CPO 2003 C4S in June 07...was told at the time that I would need to add 1 QT of oil every thousand miles...just this week I needed to add 1.5 QTS after only 945 miles. I DO NOT beat the car at all. Is this normal? Car is still under Certified warranty so I will certainly go back to the dealer if there is something wrong here........thanks !!!

 

No, I own add 1/2 qrtof oil a year if any.

Does not sound normal to me.

Lee

 

Lee---dealer tells me it's in the owner's manual and is expected.

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With regards to the oil consumption, there is no specific guideline, depends on driving habits and usage. The rule of thumb is 1 liter for every 1000 kilometers (approximately 600 miles).

It is mentioned on page 14 of your owners manual. If you have any other questions, let me know.
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if it doesnt leak oil ..its not a porsche...sorry but thats just ther real truth...

Lemon

 

I can accept that as long as I know it's normal...

 

Okay I stand corrected. I must drive too slowly or not enough miles per year. I just never putoil in my 1999 911CAB. I just had my oil changed once a year. When I changed the oil I would ask how the level is ans it was down a little. Iguess I was lucky. I never had oil leakage either. Charmed life

Glad you told me because my 2007 Porsche I just bought may have some oil consumption.I will at least check it. I never do check oil or air pressure on cars. I am bad about that, lazyI guess I used to check tire pressure every six months, I am now doing every month.

Thanks for letting me know.

Lee

 

As far as I can determine mine uses no oil at oil and I check it often. On the other hand it has never gone more than 5000 miles between oil changes so I haven't given any extended period to really test its consumption.