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    Aerodynamic Truck

    So, park at a body shop, drop 10,000$ for a slight hood modification and side skirts. . . I bet a lot of that fuel efficiency increase is also in the tune of the engine.
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    MAN unveils super-streamlined semi truck

    Agreed. ,.,.,,.,.,.,.,
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    MAN unveils super-streamlined semi truck

    If you want aerodynamic, shape your truck after a water dwelling animal. Rounded and sleek. If you don't round the rear end then you're not going to do much good as that's where most of the drag is caused. Making the front of the vehicle more pointed and arrow shaped will do wonders and leave...
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    Catalyst Injection System...Does it work????

    A vacuum gauge would be more effective than a multi-hundred dollar device. Keep the gauge reading high and you'll save fuel.
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    Catalyst Injection System...Does it work????

    Maybe you misunderstand my point?
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    Catalyst Injection System...Does it work????

    There is a VW engine allowed to be sold to mexico and European countries that get over 70mpg. We MAKE the engine here in the states, but due to how the EPA tests an engine it's deemed "less efficient" due to how much raw fuel is found in the exhaust after combustion. Yes, our EPA turned away...
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    Changing Engine

    Better to deal with the devil you know.... Turbo seals perhaps? Worn piston rings?
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    Changing Engine

    If there is nothing 'wrong' with your current engine, why the rush?
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    7.3 now running hot in the mountains

    Agreed 100%. Perhaps I did not read your post slowly enough :).
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    7.3 now running hot in the mountains

    While this is true, being in a closed loop system the cooling system should never experience a pressure drop unless the cap is off.
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    12v fridge and micowave

    Depends on what size you want/need. We just installed a fridge, solar panels and a microwave in our travel trailer. Price was reasonable for what we got. 12 volt cooler We got the "ENGELUPRIGHT", had it installed in the place of the stocker that was on its last leg. Just looked for the...
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