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63 Miles Per Gallon?
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<blockquote data-quote="wkmac" data-source="post: 805545" data-attributes="member: 2189"><p>Duramax is a good engine package and coupled to a Bully Dog controller, you can make a lot of HP. I saw a similar rig in a 3500 series but instead of the Allison automatic, this guy went aftermarket and had a 6-speed manual installed as he was hauling some stout loads. When not pulling loads he was getting fantastic mileage highway and city because he controlled the rpm's as low as he could. I've got a 2500 4 wheel drive Suburban 7.4 liter gas<img src="/community/styles/default/xenforo/smilies/FeltTip/sad-little.png" class="smilie" loading="lazy" alt=":sad-little:" title="Sad Little :sad-little:" data-shortname=":sad-little:" /> engine with a 410 rear gear for towing and when I drive I watch the tach way more than the speedometer and on one trip with the 42 gal tank topped off, I got well over 900 mile range out of it which was quite a surprise to me. Watching the tach and rpm's was the key and 0 to 60 wasn't anywhere near light speed either. </p><p> </p><p>I do think diesels offer a lot going forward and what interests me even more are diesel electrics. I saw where Freightliner is working on a diesel electric tractor using a train locomotive type setup and they already have a diesel electric hybrid in the field.</p></blockquote><p></p>
[QUOTE="wkmac, post: 805545, member: 2189"] Duramax is a good engine package and coupled to a Bully Dog controller, you can make a lot of HP. I saw a similar rig in a 3500 series but instead of the Allison automatic, this guy went aftermarket and had a 6-speed manual installed as he was hauling some stout loads. When not pulling loads he was getting fantastic mileage highway and city because he controlled the rpm's as low as he could. I've got a 2500 4 wheel drive Suburban 7.4 liter gas:sad-little: engine with a 410 rear gear for towing and when I drive I watch the tach way more than the speedometer and on one trip with the 42 gal tank topped off, I got well over 900 mile range out of it which was quite a surprise to me. Watching the tach and rpm's was the key and 0 to 60 wasn't anywhere near light speed either. I do think diesels offer a lot going forward and what interests me even more are diesel electrics. I saw where Freightliner is working on a diesel electric tractor using a train locomotive type setup and they already have a diesel electric hybrid in the field. [/QUOTE]
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