What is the spark plug gap for a 1991 f-150 8 cylinder?
The recommended spark plug gap for a 1991 Ford F-150 with an 8-cylinder engine (likely a 5.0L or 5.8L) is 0.035 inches (0.89 mm).
However, always double-check your owner's manual. The specific gap might vary slightly depending on the exact engine code and type of spark plug used. The owner's manual will provide the most accurate information.
