If you own a truck with the 6.6L Duramax diesel, you already know what it costs to feed it. The engine makes 470 horsepower and 975 lb-ft of torque, and it will haul just about anything you can ...
Diesel engines are sometimes assumed to have poor fuel efficiency, possibly due to their association with heavy equipment, big ships, long-haul trucks, and other gas-guzzling machinery. But contrary ...
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