I did actually manage to burn some oil between changes, enough to get my light to come on. Granted it was 10K between changes but I was a little surprised. I don't notice an appreciable amount of smoke when I drive, at dusk when i gun it uphill I notice some fumes/haze.

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1991 190E 311K [Brilliant Silver/Black MBTEx] -retired
1996 E300 315K [Black/Grey MBTex]

Want to put a tank in the trunk for WVO/SVO in the E300 Need to find a place to store my OIL!
Still procrastinating about the biodiesel/WVO
Made some biodiesel but so afraid to pour it all in - I've added some and think I'll supplement my fuel to see how I make out

Made some biodiesel but the process scares me - methanol fumes are not your friend! Need to do this outside.