Auto >> AutoSPT >  >> Engine

What is the correct spark plug gap for a 1999 lumina LTZ with 3.8 engine?

The recommended spark plug gap for a 1999 Chevrolet Lumina LTZ with the 3.8L engine is 0.040 inches (1.0 mm). However, always double-check your owner's manual as this is the general recommendation and slight variations may exist depending on specific engine variations or regional specifications.