I have seen people buy old truck. First place they go, Jiffy lube. The engine has not been current on oil changes. Put in a high detergent motor oil in it. Now the caked oil deposits are moving around. Going into oil galley, making the engine loose oil pressure. Need less to say the engine will need a complete overhaul. Non-detergent oil and bottle zppd, is the way to go.
Last edited by 1946 chevy; 01/29/11 06:28 AM. Reason: word out