Username:

Message:

<p>[QUOTE=&quot;Brandt, post: 8423512, member: 96019&quot;]I&#039;m driving a 2017 Cascades with DD13 and DT-12 I can get 7.4MPG without even trying. It&#039;s a complete truck and they have no APU. We have the Optimized Idle system. The engine will start and run forfor&nbsp; heat or a/c and to recharge the batteries. I would say it runs about 5 hour every night maybe more. Plus it does parked Regen every 8 hour of idle time. So it normal won&#039;t Regen when stopping just for 10 hour break. When we do 34 hour reset we get 1 or 2 parked regens.</p><p><br /></p><p>The DT-12 trasnmision take a little getting used to. Most driver want use engine brake like regular one. It&#039;s programed to always drop a gear and raise the engine RPMs to give you crazy strong engine bake. That messes up a lot of new driver because they are using it all the time and the truck seems out of control they always say. </p><p><br /></p><p>It really made for hills, not every stop light or stop sign. Stage 1will Always keep engine RPM 1,200-1750. The same for stage 2 but strongrs. Stage 3 will ALWAYS keep RPMs 1750-2200. It keep engine RPMs high to give you crazy strong engine brake. So going downhill at 1750-2200 RPMs is normal. So obviously you don&#039;t use it in snow or ice. </p><p><br /></p><p>It never gives up if truck slows down and you keep stage 3 engine brake when you hit 1700RPMs you should switch to stage 2. If not it will downshift and raise engine RPMs to 2200 and keep slowing down. That what I mean it never quites untill you turn it down or off. It will keep slowing truck down and keep dropping gears.&nbsp;&nbsp; It a cool feature because one you learn it you can go downhills without touching brakes. You can just switch from stage 3 to stage 2 and the transmission won&#039;t shift gears. </p><p><br /></p><p>The DT-12 trasnmision also has a special downhill mode most people don&#039;t seem to understand. You can set the cruise control and lock the truck into a set speed like down to 30MPH and the transmission will hold that speed by switching engine brake from stage 1,2,3 automatic. It can hold a truck and trailer on like 8% hill at speed you set if for down to 30MPH.[/QUOTE]</p><p><br /></p>

Your username or email address:

Do you already have an account?

• No, create an account now.
• Yes, my password is:
• Forgot your password?