Service Intervals
WARNING: This page is about a different car, the 1988 Isuzu Trooper II, 1988 Isuzu Pickup, 1988 Isuzu Impulse, and 1988 Isuzu I-Mark. However, it is still accessible from the selected car via links, so may be relevant.
Replace lubricant at first 7500 miles or 12 months. Fluid should be checked every 7500 miles and replaced every 30,000 miles thereafter.