How often do you change the oil?

If you follow the recommended service intervals, the rings might get some sludge on them and due to the low tension design might stick to the pistons a little.

That oil consumption is considered acceptable for that engine, though.

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Ali Al-Chalabi

2001 CLK55
1999 Dodge Ram 2500 Cummins Diesel
2002 Harley-Davidson Fatboy
Merlin Extralight w/ Campy Record