Originally Posted By: BobFout
FWIW the girl at AutoZone who poured my used oil (5w40) into the oil recycling container said it was between water and syrup for consistency. The used oil container had been in the car overnight also.
That is sort of an apples to oranges comparison because if you compared fresh 5w40 to used 5w40, you'll notice the same thing.
It's just soot loading which causes the viscosity increase with the miles packing on.
The M1 after 10,000 miles is going to thicken up also, from soot.
FWIW the girl at AutoZone who poured my used oil (5w40) into the oil recycling container said it was between water and syrup for consistency. The used oil container had been in the car overnight also.
That is sort of an apples to oranges comparison because if you compared fresh 5w40 to used 5w40, you'll notice the same thing.
It's just soot loading which causes the viscosity increase with the miles packing on.
The M1 after 10,000 miles is going to thicken up also, from soot.