I recently bought a 1988 Comanche and the engine oil light keep coming on. The engine has knocking also when I start it and it is cold. I plan on replacing the oil pump in a few months but can't do it just now. Would it be good to put a bottle of the Lucas engine additive in the truck's engine? The bottle says it will stop knocking and increase oil pressure. Does anyone have experience using this Lucas oil additive?
Appreciate any advice.
Thanks, Mac