As of right now, gas in Scottland is much more expensive than it is in America. It is unclear why the gas is so much cheaper here but it must be horrible living there.
Diesel gas gives more mileage (miles per gallon) than regular gasoline. You must, of course, have a vehicle that has a diesel engine because diesel fuel cannot be used in an engine that runs on...
Yes, the little bit of diesel won't harm the gas but make sure it's cleaned out before putting diesel back in as gas will harm a diesel.
For more information please see the answer to the Related...