I was in Japan it was 2003, had a 1993 Toyota exive 1.8L engine five speed manual. It was a free car I got from someone who was leaving to go to another assignment. I checked the oil it was full but it looked like it could really use a change, looked like oil from a old Chevy 6.2 and 6.5 diesel, it was opaque black. Definitely been in there a while.
I changed the oil at the autohobby shop and you were supposed to crush the filter after you drained the oil out of it for recycling, as the Japanese love to recycle steel. When I crushed the filter in the filter crusher carbon that looked like black coffee grounds split the oil filter open and smooshed out of it. There was a lot. The filter was at least half full of this sludge. Yeah I changed the oil again about 500 miles later.
I changed the oil at the autohobby shop and you were supposed to crush the filter after you drained the oil out of it for recycling, as the Japanese love to recycle steel. When I crushed the filter in the filter crusher carbon that looked like black coffee grounds split the oil filter open and smooshed out of it. There was a lot. The filter was at least half full of this sludge. Yeah I changed the oil again about 500 miles later.