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Comeback mods
So I purchased a 1996 Dodge Cummins diesel to Eco mod. First tank with no mods 19+ mpg from a 8000+ pound truck. Then the heat wave hit, AC on all the time. MPG dropped to 16+ mpg. The AC worked great at low speeds/rpm, warm at higher speeds/higher rims. AC was overcharged by more than 1/2 pound increasing the pressures and making the engine work harder. Mods this week after AC recharge with proper amount of freon, straight pipe cat and muffler delete, (removed at least 50 pounds), removed mud flaps, removed chrome wheel covers. Planned mods grill blocks and taller tires
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