.6 mm on all 2003 gmc model trucks according to my manual
Check the Vehicle Emissions Control Information ( VECI ) decal located in the front of the engine compartment ( it will show what type of spark plugs to use and the spark plug gap )
specification on gapping spark plugs for 2006 chevy cobalt
1.1 mm
I believe that the gapping is .044" on this engine.
According to one of the Ford websites : For a 1993 Ford Aerostar , 4.0 liter V6 engine : ( the spark plugs are gapped at .054 inch )
The gap for spark plugs in a 96 GMC sierra is .60
Chrysler recommends using Champion spark plugs and gapping at 0.35 (in thousandths of an inch).
buy platinum tip spark plugs they dont need gapping
make sure the gapping on the plug is correct to what the vehicle needs
35
The standard gap for the Yamaha xs1100 is.032 for most plugs. However, the Iridium Plugs call for a gap of .044.
All iridium plugs never need gapping because they are 10 times harder than a platinum plug.