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 regular gas!
Depending on local government taxation policies, in some countries diesel is cheaper to buy than regular gas whilst in other countries it is more expensive!
Diesel fuel is thicker and "stickier" than regular gas so, if a vehicle's fuel system ever needs cleaning - fuel tank, fuel lines, fuel pumps and fuel injectors - it is a more difficult and expensive job to do on a diesel vehicle.
Yes, diesel trucks generally get much better gas mileage than regular gas trucks. They even sometimes get better gas mileage than hybrid trucks.
Gas is better to use than diesel for trucks for offroading.
Diesel takes longer to burn than gas so, accordingly diesel is more fuel efficient.
In most areas of the country Regular is not higher than Diesel, it is just the opposite.
regular gas
Are diesel engines better than gas engines is sort of a yes and no question. Diesel engines generally get better fuel mileage and last longer overall. But, gas engines are easier to maintain on your own and gasoline is much more readily available than diesel fuel is on the whole.
diesel.
defnetly diesel
Diesel fuel has different chemical and physical characteristics than regular petrol. It is fractioned at a higher temperature and has a higher flashpoint.
the 2012 mustang will run on regular gas
In general, yes. The diesel engine cycle utilizes much higher compression than a gas engine. And the higher the compression, the more "efficient" the engine- everything else being equal. Also, diesel has more energy (btu) per gallon that gasoline, so you win on two fronts.
With gas prices on the rise its no wonder people are interested in converting your vehicle to propane. Propane costs significantly less than regular or diesel fuel. Propane has better mileage for distance than gas. It can be extremely cost effective.