MOTOR OIL ?
After learning a certain oil change facility does not always change the oil filter when doing an oil change I went back to doing it myself. Things have changed on the motor oil shelf. So many choice...
Forum Discussion
Most all engine oil are made from crude.
The difference is in how they are refined and additive packages
Early days of synthetic did have OEM’s not recommend mixing
Today, most say ok and I’d add of the same spec
Issue is with their additive package compatibility and not going to kill an engine instantly. Just altered additive package
As for cheating, sure thing...occasionally local news expose has a complaint and proved via marked oil filter and oil analysis
Do my own, but occasionally use a drive through when squeezed for time and one place just change their rules requiring to stay in the vehicle...so can’t see the oil drain n filter come out
The difference is in how they are refined and additive packages
Early days of synthetic did have OEM’s not recommend mixing
Today, most say ok and I’d add of the same spec
Issue is with their additive package compatibility and not going to kill an engine instantly. Just altered additive package
As for cheating, sure thing...occasionally local news expose has a complaint and proved via marked oil filter and oil analysis
Do my own, but occasionally use a drive through when squeezed for time and one place just change their rules requiring to stay in the vehicle...so can’t see the oil drain n filter come out
