This is a HIGHLY debated topic. Many suggest .040. Personally i suggest .035 so that there is less of a chance of pinging.
.060
Yes.
Check your Vehicle Emission Control Information ( VECI ) decal in the front of your engine compartment for the gap settings for the spark plugs
.041
Yes, it sure does. The only vehicle that does not have spark plugs are vehicles with diesel engines.
Four
Very carefully
Check the 97 Saturn for fire at the spark plugs, and proper fuel pressure. One of these two are probably the cause of the vehicle not starting.
it's a 4 cylinder car, right? so it should have 4 spark plugs.
The spark plugs along with the plug wires are hidden very well... The spark plugs are located under the log plastic strip on top of the valve cover.
I believe 30 thousandths auto parts store should be able to tell you
The best spark plugs are the original equipment plugs that were installed by the manufacturer at the factory. Sometimes you may need to go to a dealer to get the exact plugs.