Hello -
I do the 3K+ oil change, the "+" as a function of how busy I am. My SW2 burns oil like many S-Series (maybe 1 quart every 3K), so I don't take chances. If I were more car-savvy, I would probably go up to 5K. My current formula is 5w30 synthetic + larger-than-OEM Wix oil filter (for Ford Focus).
CarloSW2
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