How can i improve my oil pressure in my 360 magnum
'Shimming the pump' only increases the pressure relief spring's pressure. It typically does little or nothing for the idle pressure.
Realize that at cool temps (like at start up), synthetics will be thinner than standard oils so will show lower cool pressures. At temps like 60F, the lower oil weight rating is not accurate, that 'cold' weight rating is measured at 104F.
What weight of synthetic is this?
