Remove the drain bolt from the oil pan, and let the oil drain into a bucket. Unscrew the oil filter with the use of a filter wrench. Screw the new filter on, and reinstall the oil bolt.
The 1993 Isuzu Trooper with the 4L30E 5-speed manual specifies API 5W30 for the transmission. API SJ (or above) is compatible with this transmission.
on the engine
its faulty
The oil sending unit in a 1992 Isuzu Trooper is located within the car's engine. The oil sending unit is responsible for determining the oil pressure.
4.2 QTS
At the bottom of the engine oil pan.
low or no oil pressure
with an axe
No, that's an indication of a problem.
5W-30, preferably synthetic.
6.5 quarts
Its between the radiator and the engine on the bottom side.