What is the spark plug gap for a 1989 F150 with 300 engine?
The recommended spark plug gap for a 1989 Ford F-150 with a 300 cubic inch (5.0L) engine is 0.035 inches (0.89 mm). However, always double-check your owner's manual for the most accurate information. The manual will specify the exact gap for the spark plugs recommended for your specific engine and application.