DO NOT GAP THEM. You will ruin the platinum coating and they will not fire enough to drive your car. The gap is preset at .054" at the factory, so put them in right out of the box.
specification on gapping spark plugs for 2006 chevy cobalt
1.1 mm
I believe that the gapping is .044" on this engine.
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
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 )
make sure the gapping on the plug is correct to what the vehicle needs
All iridium plugs never need gapping because they are 10 times harder than a platinum plug.
The standard gap for the Yamaha xs1100 is.032 for most plugs. However, the Iridium Plugs call for a gap of .044.
0.060 - at least from plugs Napa sells. Other plugs may have different gap or have preset gapping
There are several different "Bosch" spark plugs that don't need to be gapped (actually gapping them will damage them) that are perfect for Ford Thunderbirds!!!
For the stock XP Iridium spark plugs the gapping is .051, I would suggest not changing the stock spark plugs until your warranty has expired. Mazda tried giving me crap for changing mine.