I really suspect the dealer overfill scenario stems from dropping off the car, and them driving it into the shop, then draining the oil. ANd all of the oil doesn't get out of the engine.

When I changed my own oil, I didn't fully have the car level, as I only raised the rear enough to get comfortable access. But, I jacked the car up the night before so that it would be fully drained into the tank.

I put in 7.5 quarts, started the car, checked several hours later, and it was 1 bar from full, so I added a little more - and perfect, The dealer doesn't keep the car for two days ...

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Cayman S - a portable amusement park

- 2006 Cayman S
- 2003 Dakota SXT
- 1963 Studebaker Avanti, R2, 4-Speed
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LL