The standard it is blended at is very strict and is policed with constant testing but I agree that there are potential gains in mpg and power but the sums are usually flawed as to the cost savings.
The premium fuels are usually about 10p a litre more so currently about 8% overall so fuel consumption needs to improve by the same or more to
I get 456 miles from a tank of cheap diesel, 520 from premium. Tested it several times, stats hold trueThe standard it is blended at is very strict and is policed with constant testing but I agree that there are potential gains in mpg and power but the sums are usually flawed as to the cost savings.
The premium fuels are usually about 10p a litre more so currently about 8% overall so fuel consumption needs to improve by the same or more to be worthwhile.
