0.31 greater than 0.031
No, .031 is not legally intoxicated.
The owners manual says .031, which is right for factory stock plugs. Using Autolite double platinums it's .044. Any less than .040 and your engine will misfire and set the malfunction light.
Not at all.
The allowable deviation of diameter (schedule 20 and greater) at any point from nominal diameter is: Under 2": +.015/-.031 2"-12": +/-1%
3.1% or 31/1000.
31/1000 = 0.031
.031
30,031 is composite.
.031
gap is .017
The GCF is 1.
.031 in