Just a fyi. This thing is almost invaluable being under the truck on the side of the freeway and laying over a hot engine. Do not let it lay on the turbo or exhaust manifold as it starts smoking. I have really given it some use with the recent fueling issues. They are having a sale right now so I will let anyone interested know. Say's to use code FATHER19. If you want to use old blankets, towels, cardboard that's fine to. I am just the messenger.