I have never used synthetic oil. Oil changed at 5,000 miles. And between DW and myself well over a million miles driven and never an engine failure on any vehicle except a seized bearing on a 1978 Chevy LUV 4 banger pickup at 150,000 miles. And I drove that one hard. See no need for synthetic.
__________________
Bill & Patricia
Riley, our Golden
2007 3075RL (recently sold, currently without)
|