yes, but they require that you only run Premium fuel. The savings on mileage is offset by the extra cost of the fuel, and its not worth it.
Yes it would, but it will also be dumping more fuel in the engine causing worse gas mileage. You decide.
no, they just mean that the engine has a supply of hydrogen to run on rather than any other fuel
No!
They are about the same in fuel mileage but the 6.0 is thirsty.
Helps improve fuel mileage.
Clean oil lubricates better, it is "slicker". If the engine can spin easier, that will improve fuel economy.
Ls1 or a 2jz
If you are referring to E85, from my experience using E85 actually lowers the fuel economy.
I had a 1999 Chevrolet Lumina with a 3.1 liter engine and the average I drove was 29 miles per gallon. I have never encountered a way to improve getting better mileage. It just really depends how a person drives.
most likely not. v-10 keep this in mind. city driving is the worst on this engine. 2 more cylinders sucking fuel all the time. highway driving should be ok though depending on how long. this engine was fords cheep way of giveing the person that wanted engine power for pulling or pto without the price of the diesel.
a percentage or amount of something AE: the fuel. there is a cut off ration on your fuel system so that your engine does not flood out and stop running.. or burn up.. its main purpose is to improve gas mileage and air fuel ratio. increasing performance