oil pressure checked today, at idle about 18-20psi and about 60 -65psi at fast idle warm. I did an engine flush and in the first few minutes with the flush, pressure dropped to about 10psi at idle. going to drain and refill with synthetic and see what happens. thanks

 

after the flush &refill of oil &filter ..... still the same psi when warm. yet when cold oil pressure is 40-50psi at idle & 70psi at faster rpm`s. going to change the pressure sensor tomorrow,even though it wont do much for the pressure.any other ideas????