"Economy" Transmission selection

[sssacco]

I have a 2007 Bounder Turbo Diesel (Cat 300). The transmission selector panel has an "economy" option button. When depressed, a small red light illuminates. What else does this button do? Once again, the dealer is absolutely no help except to say "It must be for economy". Thanks.

[RickO]

Most of us have found that the most effective thing that button does is turn on that little red light. What it actually does is change the shift points in your transmission... I assume it is an Allison. Shifting at slightly lower RPMs is supposed to improve MPG but I haven't heard anyone claim yet that they notice much difference. Sounds like your dealer is a doozy
Rick

[bigskymt]

On our '04 KSDP selecting the economy button will result in less downshifting. A noticeable difference when approaching hills.
You will be required to select economy after every engine start cycle as the Allison will default out of that mode.
I can't say I've noticed any mileage difference either using economy or not as there are too many other variables per tankful.
I avoid economy mode in very hot weather choosing to keep engine RPMs higher for cooling purposes, just my belief.

[sparkydog]

Hi Sssacco, Gotta ask, Sacco is my wifes maiden name? Where are you from?

[Coached]

Yep, just as the name suggests. In "economy" mode shift points are changed both upshift and downshift ... you will not accelerate as quickly and will "coast" longer before downshifting. When used with cruise control, normally at highway speeds, you will notice a difference in fuel consumption with little noticeable effect on performance, until you come to a big grade! Manual downshifting might be preferable on steeper grades but try it both ways to see for yourself. We use ours and we see a difference.

[rvtips]

I have run many trips in economy mode and the same trips with it off,and found NO help with fuel mileage.

Quote:

Originally Posted by sssacco I have a 2007 Bounder Turbo Diesel (Cat 300). The transmission selector panel has an "economy" option button. When depressed, a small red light illuminates. What else does this button do? Once again, the dealer is absolutely no help except to say "It must be for economy". Thanks.

[cb5300]

Quote:

Originally Posted by rvtips I have run many trips in economy mode and the same trips with it off,and found NO help with fuel mileage.

Same here...Got to feed that Cummins.. and everytime I fill up the tank I want to cry...

[sssacco]

Quote:

Originally Posted by sparkydog Hi Sssacco, Gotta ask, Sacco is my wifes maiden name? Where are you from?

I'm from Western Mass. Little town called North Adams. Where is she from?

[Roadking]

Less shifting in rolling hills. I always use it because it does reduce the number of unnecessary shifts. This may not save any fuel, but fewer shifts in the tranny may reduce tranny wear and extended the life of the tranny clutches a mile or two I guess that's economy.

[JimM68]

I don't like economy mode. She stays in high when it's obvious to the most casual observer that she shoulda downshifted to fifth.

[Mtn.Mike]

Did you ever push the R button rather that the economy button. That will give you a thrill.


Mike

[dons2346]

Quote:

Originally Posted by Mtn.Mike Did you ever push the R button rather that the economy button. That will give you a thrill. Mike

If you are at highway speeds, nothing will happen.

[Roadking]

Quote:

Originally Posted by dons2346 If you are at highway speeds, nothing will happen.

Clearly you read the op manuall!!!!!

[Mtn.Mike]

Nah! I didn't read the manual I just like to hear the alarm sound.


Mike