8-speed Transmission!?

[2018GMC]

Once again. Talkin about fuel economy and trucks. Blaaaaahhh

Yes it will help fuel economy but the 8-speed will also help improve acceleration and towing. More gears to keep the engine in its optimal power band.

[elcamino]

8-speed it going to add about $1000 on to the price of a new truck...

[BNSF]

8-speed it going to add about $1000 on to the price of a new truck...

 

When your spending 50Gs on a vehicle, what really is another G? Not much.

[2018GMC]

When your spending 50Gs on a vehicle, what really is another G? Not much.

 

+1

 

When I am spending this much i want the latest and greatest!

[Daryl Z71]

8-speed it going to add about $1000 on to the price of a new truck...

 

When your spending 50Gs on a vehicle, what really is another G? Not much.

Unless you don't spend 50G

[BNSF]

Unless you don't spend 50G

 

Right now, if you want all the bells and whistles, your gonna be spending close to 50 when its all said and done.

[jaslo]

Not that hard with the new trucks I've hit 25

 

Is that hand calculated? Also, is that driving like Grandpa?

[Firetiger(MN)]

15 mile trips aren't an accurate representation of fuel mileage.

 

I would like to see some folks with these new pickups report on their mileage on a tank, minimum, or an average over 3 to 5 tanks. That will be a better gauge at what we're looking at.

[Natek]

I hand calculated and the DIC was off by about half a mpg. Only did this once.

 

There is a instant mpg you can turn on in ur settings that shows your instant and ur last 50 miles. You can also change it to 100 and 200 miles.

 

Best I have gotten was 24.4 ( it shows your best and current at all times). This was done when I had cruise set on 60 for 45 miles and 50 for the last 5. These trucks really get good mileage.

 

I will do some different tests and see how it does. I will also hand calculate because we all know car manufactures like to show a little extra fuel mileage on the dash.

 

The truck has 3000 miles on it now. I just can't stop driving it!!!

[elcamino]

How do you accurately measure the amount of fuel used in hand calculations?

[Prokopchuk_9]

How do you accurately measure the amount of fuel used in hand calculations?

['01LS1]

Was at my dealer a month ago talking to the service mgr. while getting some work done on my truck. We were talking about the new 14's and he said if I wanted a new one to wait till next summer that the 8-speeds would be out by then. Said he had saw them at a training meeting in Florida a couple weeks earlier. Don't know if he was blowing smoke or not but he was the one that brought it up.

 

Has anyone heard anything else on the 8 speeds down the road?

[crushNchowda]

6 speeds is enough. Moms Audi has an 8 speed, thing needs to relax w/ the shifting. When the tuners dig into the new sierra 5.3 w/ 6 speed and get some decent tunes out all will be fine. 6 speeds seems just "right" to me....like porridge!

[Prokopchuk_9]

The ratios in the 6 speed are stupid IMO, the allison is the same way. You get 2 bull low gears and 2 OD's, the spread isn't very even IMO. I would rather have evenly spread 4 speed, with 1 OD gear and 4:56 gears. Jus like the 01-05 allison.

['01LS1]

I really liked the 6 speed Allison in the 07 vs the 5 in the 04.5 in both towing & daily driving. But was not off roading either of the trucks, maybe that is the difference?

 

As far as 6 vs 8 speeds in the gassers. Test drove a Ram a few months ago & that was virtually the only part I wanted out of the truck.