I had an oil change tech tell my Daughter that mixing conventional oil and synthetic oil causes little oil beads (WHAA?)in the engine and will cause it to over heat. She called me in a panic, and I told her to bring the car home and I will show her how to do an oil change. Just for fun we used a Synth blend oil.

I worked a t a BMW dealership in San Diego right after graduating High School. I went with two of our techs to pick up some cars in LA. 2 fit on the hauler and two needed to be driven back. The two drivers ended up being 850's. An auto and a 6 speed. I was tasked with driving the 6 speed back south. Due to traffic I…

I’m guessing your car has