I wouldn't put synthetic in my 30 plus year old car at this point in time. Maybe a newer one. But not my 81.
Our local Mart finally got in a shipment of 15W 40 and had it on sale. Been gone all summer. Good thing I am not driving miles like I use to.
I use synthetic every winter in my mk1
I use synthetic every winter in my mk1
All my diesels get synthetic, and so does my snowblower.
Maybe I could get away with synth now. I run about 100 psi on the oil gauge until it warms up and I don't have any leaks. Other than the slow one on the oil pan. But a new gasket would cure that quickly.
What are your oil change intervals to those running synth?