The chemical processes are the same to add the detergents to the oil. I was using it as an example, airplanes use 1930's tractor technology because tractors were more advanced than automobiles during its infancy. If someone was to have a bad engine, it would either go to the scrap yard or be rebuild without ever being investigated. Its a proven fact that oils do get old and change chemically, but you will still have those who will claim that their oil is good and they will use it anyways.


1941 Taylorcraft
1968 Charger
1994 Wrangler
1998 Wrangler
2008 Kia Rio
2017 Jetta

I didn't do 4 years and 9 months of Graduate School to be called Mister!