simple.serf
Feeling the Heat
Synthetic oil story. I used to manage a truck leasing company. We used RPM Delo in all of the Cummins and Detroit diesels. One customer asked about Mobil 1 when it came out. We told him not to worry about it. Oil and engine maintenance were part of his lease.
A few weeks later he came into my office and told me his story. He decided we were full of it and he changed the oil in one of their trucks and used Mobil 1. At five bucks a quart in 1973 dollars. On the way back to Dallas from Houston an oil line busted and dumped something like 14 gallons on the highway.
We never heard him talk about synthetics again.
As I said, I can only make myself run it in harder to replace stuff. Hell, I still have engines that I run Non-detergent in. (open crankcase total loss systems).