The proper spark plug gap for a 1989 Chevrolet Cavalier depends on the engine. There were several engine options available that year. You
must consult your owner's manual to find the correct gap for your specific engine.
The owner's manual will list the gap specification, usually expressed in inches or millimeters. Without knowing the engine size (e.g., 1.8L, 2.0L, 2.5L, 2.8L), it's impossible to give you the correct answer.
