What type of oil does a 1998 Chevy blazer use?

A 1998 Chevy Blazer's recommended oil type depends on the engine it has. There were several engine options available that year. To know for sure, you need to check your owner's manual.

However, generally speaking, a 1998 Chevy Blazer would likely use conventional or synthetic 5W-30 motor oil. Always refer to your owner's manual for the *exact* specifications recommended by Chevrolet for your specific vehicle and engine. The manual will also specify the oil capacity.