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if it is dyed diesel then no it is agents the law
The brand is not really the issue.Basically any truck that is aerodynamic will get good fuel mileage. but for really big tractor trailors i would say the international lonestar. but if you want a smaller truck i think Chevy kodiak 7500
The H3 gets the best fuel mileage. Everything but the body is a Chevy Trailblazer.
City or highway...
3-6 mpg
There is no fuel additive that will increase mileage. This is a myth. None of the snake oil additives work.
== == A highway trailor combination, pulling a 53 foot trailor, with a full legal load, and equipped with a commercial diesel engine of 300 to 400 hp, will get about 5 to 6 miles to the US gallon of diesel fuel, less in the mountains.
Probably the best way to get better fuel mileage would be to get a tuner for it.
Four to eight miles per gallon, all factors dependent.
if drive at 55.6 miles a hour you will get best mileage.
If you are looking for more information on where can you purchase the best mileage car that is fuel saving and environmental friendly, the best place to look is on green..com/living-green/buying-a-fuel-efficient-car.html
The estimated fuel mileage for the latest Jeep Patriot is 23mpg in the city and 28mpg on the highway. This is currently the best fuel economy in the off-road class.