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Oil change came out black after 100 miles?
I bought a bike with old oil in it setting for 3 years ran it for a quick ride drained the oil. did a second oil change with marvel mystery oil to get any remains out the oil I drained out was blackened already with only 100 miles tops on the oil drained out. is this normal its a air , oil cooled bike.
4 Answers
- BertstaLv 72 years ago
If it's been sat there is a probably a whole bunch of sludgy old oil sitting in that donk. Draining oil doesn't remove all the oil in an engine. There are blind galleries all around the engine to trap a little oil; they never completely drain. The idea is that there is <some> oil available for cold starts. The engine would have more wear if all the oil drained to the sump overnight. These two factors is why your new oil is being diluted and discoloured by old, but it's not a problem. Air cooled motors also run hot and tend to be harder on their lubricants/
- Anonymous2 years ago
Oil gums up, and gets old. It's going to be stuck in there unless chemically removed. Just don't use Sea Foam!
- ?Lv 72 years ago
What did you expect after having the bike sit for three years? Not all of the gunk came out with the first oil change.
- CarsonLv 62 years ago
It sat for three years.
Fill the crank case with Kerosene and shake bike around let it sit over night.
Drain it and put fresh oil and a filter on.
It'll clean up.
Wait for 1000-1500 miles. That will melt the paragon off. The do another change.
