What is API gravity?
Gravity is an indication of the high density energy content of the fuel. A fuel with high density ( low API gravity ) contains more BTU’s per gallon than a fuel with low density ( higher API gravity ). Under equal operating conditions, a high density fuel will better fuel economy than a low density fuel. 67. What product will stop door squeaks. Question: What product will stop door squeaks. Answer: Quote from Marine:I bought a silicone spray (NO PETROLEUM) for the door seals and it works great. Just have to re-apply every month or so. Watch the overspray- use a rag to protect the truck.