Fuel Mileage - Automatic vs. Manual

The DT-12 I got out of had 350,000 miles and it never had any trouble. It still basically new. One person say the hill GPS location is BS or over engineering. That information is what help the new AMT go uphill without shifting gears or it can change the shift point on that information. Remember the old first generation had trouble going up hill because they would up shift to early. Then it could not pull that gear. So it downshift.

These new AMT have come a long way from the old Rockwell's that would fail after 7 days because you had to reset the computers.

If you want MPG you have spec the truck for that like direct drive. That what the Detroit transmission is in 12 gear

 

Mine was 2017 but I got in 2016, I would think at 450,000 miles or 500,000 it would need a new clutch. I hear they are like $4,000 because of stuff it actually has for a clutch. The one I had was good but I never used one with lots of miles on it.

I think they are a little slow shifting at stop lights. Lots of driver with manual transmission run RPM up to 1,800 for every gear so you get faster starts. I see the cabs lean or pulls as they shift each gear. You can't do that with the DT-12, it shift before that. Best thing you can do is test drive one and see what you think about it

 

That's 5k more than the rebuild of my old cat, for what that's worth.

 

They are not even close to $25,000 even in Canadian dollars up here. Someone fear mongering maybe said that at one time, but it is false. Now maybe if it was coated in gold, and had a diamond encrusted drain plug it would cost that. But otherwise no.
Canadian I was quoted for a brand new one, not just overhauled, $12,600 and Google tells me that is $9,594 American. Then if you send in the core you now have for a rebuild, you can get it done for about $5,500 Canadian, and sell it for $7,000, so that is another $1,500 off the original price. Yes I looked into, just incase I ever have an issue. I know that a rebuild is $7,000 from a quality shop, because I bought one a few months ago and have it sitting in the parts department i have just incase it is ever needed.