It does not have egr
Try replacing oil sending unit with a mechanical gauge to determine actual oil pressure Low oil pressure may be due to excessive internal engine wear
Wear is drain plug on 1997 GMC 7.4
you either don't have the brake fully dis-engaged or you need to have your brakes checked for wear.
The "Dodge" diesel is actually a Cummins heavy truck engine. With proper maintenance, it should last about 250,000 miles. The injectors will need replacing every 100,000 miles. I would say 500,000 is average for the engine. I do not agree about the injectors. The truck will wear out before the engine does.
You CAN use whatever you want but you can also cause premature engine wear. Use exactly what your owners manual recommends and nothing else. Only use 5w20 in a Dodge Caliber
Excessive internal engine wear? Install a manual gauge the check oil pressure
Every 15,000 miles, when the belt shows obvious signs of wear such as missing teeth, or when it is dry or has excessive cracks.
Excessive engine wear: bearings Weak oil pump? Bad oil sending unit?
It's simple, really. The more you drive your car, the more miles you put on the engine, and in turn you put more wear and tear on the engine and its major and minor components. And if it has a history of accidents the value will go down even more.
Bad oil pressure sending unit? Try replacing with a mechanical gauge Excessive engine wear? Do a compression test
The compression specification for a 1987 Dodge 318 engine typically ranges between 150 to 170 psi (pounds per square inch) per cylinder when the engine is in good condition. It's important to note that actual readings can vary based on the engine's wear, maintenance history, and altitude. For the most accurate assessment, it's best to perform a compression test on the specific engine.
Not in the short term... it realy depends on how many miles the engine has on it. High milage (excess of 100K) might need 10w 40 or heavier due to bearing wear.