gas milage
Has anyone found that different grades of gas or different brands of gas get better millage. Have a V10 and just curious
Forum Discussion
srt20 wrote:DougE wrote:
Premium gasoline does have a slightly higher BTU content than regular but the difference in mileage is virtually undetectable. If your engine is tuned for the better gasoline using regular could impact mpg as the electronic ignition may need to retard the spark to prevent detonation (knock sensor). Premium gasoline (branded) has a better detergent package and you would gain some benefit from cleaner injectors, etc.
Premium actually has LOWER btu than regular. Regular burns hotter and faster.
Only difference I've ever seen in mpgs from different gas blends is between using gas with some ethanol vs 100% straight gas. Straight gas will give a little better mpgs generally. But as with anything related to mpgs its almost impossible to get a perfect apples to apples comparison.
The amount of ethanol makes a difference, grade of gasoline does not
