sorry for all the random painting questions but I have another one. how do you know how much paint is enough. I just painted my full size Jeep with 3 coats of your tunnel ram gray but only used at the most 1 1/2 gal. I read to expect to use at the very least 2 gal for a large truck. The paint looks good and it looks like I have full coverage just want to find out how do you know if the paint went on too thin. thanks for the all the help
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