I have a 1998 Mercruiser 5.0 s
I have a 1998 Mercruiser 5.0 sterndrive that is carbureted. It has 260 hrs on it. The oil has always been properly maintained. The oil pressure on idle is approximately 45 psi and when I am cruising at 4000 rpm the psi jumps to 70-75. I am running Mobile 1 10w30 full synthetic. The oil is brand new. Any ideas.
I have a 1998 Mercruiser 5.0 sterndrive that is carbureted. It has 260 hrs on it. The oil has always been properly maintained. The oil pressure on idle is approximately 45 psi and when I am cruising at 4000 rpm the psi jumps to 70-75. I am running Mobile 1 10w30 full synthetic. The oil is brand new. Any ideas.