One way would be to install a tuner, but there are other ways such as exhaust, intake, tires, driving habits, etc.
Probably the best way to get better fuel mileage would be to get a tuner for it.
The best way to get better mpg's is with a tuner/programmer. Most out there guarantee better fuel mileage.
The fuel mileage for a 2005 Chevy Duramax diesel truck typically averages between 15 to 20 miles per gallon, depending on the specific model, driving conditions, and load. Factors such as maintenance, driving habits, and terrain can also impact fuel efficiency. Generally, highway driving tends to yield better mileage compared to city driving.
There are some practical ways to increase the gas mileage but you can use also Fuel Infusion what is a powerful fuel catalyst. Fuel Catalyst realy helps to increase to boost your engine power and your gas mileage.
There is no fuel additive that will increase mileage. This is a myth. None of the snake oil additives work.
Where is the fuel pump on a 2003 duramax diesel
To increase fuel mileage.
There are a few ways to increase gas mileage but the most effective is the use of fuel infusion. Fuel Infusion is a powerful fuel catalyst that improves the efficiency of the combustion process in your car's engine.
location of fuel pump 2003 chevy 3500 duramax diesel
It depends on what you're asking they are better about. the Duramax is cheaper to upgrade and has better fuel mileage and stock the Duramax triumphs over the Cummins in torque and horse power. but there is a lot of stuff you can do to them both but the Duramax is all around less expensive. and as to which one lasts longer that can vary, the Duramax has proven to be a very reliable engine but the Cummins also has one heck of a reputation. Cummins= 350hp, 650 ftp of torque Duramax=365hp, 660 ftp of torque
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You can increase fuel mileage by installing a tuner or a bigger exhaust. I'm sure there are some other ways also if you look into it but these are two of the best ways.