1997 Riviera - 3.8 Liter, L36 - 142,675 miles
Wow.. another year gone by!
I did an oil change on Dec 13th, ~1 year and 2,652 miles since the previous one. All went VERY smoothly, and didn't spill a drop on the concrete. Have been using NAPA Gold filters (black) and Valvoline 10-30.
This time I bough a new cap-wrench that fit better, a model
CTA A259.
http://ctatools.com/catalogs/2013Mas...3OilFilter.pdf
The guy that removed the last oil filter (that was way overtightened by a dealer in California)
overfilled the engine by 1 quart of oil. I figured it would slowly get 'used' or seep out. whatever.
The consequence of this was (I believe) leakage around the oil pan gasket? There was leaking at the BACK or the pan gasket, but not enough to run down to the bottom or drip away. It's just a mess.. that's all.
Does that make sense? What else could happen if the engine is overfilled by 1 QT?
-Ed