July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Service Intervals

WARNING: This page does not describe the selected car, but rather 22 other vehicles, including the 1983 GMC Vandura Special, 1983 GMC Vandura, 1983 GMC Suburban, 1983 GMC S15 Pickup, and 1983 GMC S15 Jimmy. However, it is still accessible from the selected car via links, so may be relevant.

Check with every oil change.