I would hook up a temporary manual Guage to the electric sender port. You’ll get a more accurate reading.
My XJ has 188000 so l’m using 15/40 motor oil it has zink in it, witch I believe helps with the high milage engines.
My XJ has 188000 so l’m using 15/40 motor oil it has zink in it, witch I believe helps with the high milage engines.