The thermostat is under the housing where the upper radiator hose attaches to the engine.
40 Psi
10w/40
The engine computer is the voltage regulator.
Running at operating temperature around 40 psi.
about 20psi at idle (warm) and 40 to 50psi at 2000rpm.
A full operating temperature it will be around 40 psi.
Magnetec 10w-40 should be the best oil
somewear between 1989-1993 , had the same question for my engine
If the engine is not running the pressure should be 35 to 40 psi. If the engine is running the pressure should be 30 to 45 psi.
Around 60-70 lbs cold, 35-40 lbs at normal operating temperture, and 15-30 lbs warm at idle.
50 50 coolant is what i use- would suggest no more han a 60 40 mix.
Around 30-40 psi when at full operating temperature. Can even be somewhat lower on a high mileage engine.