Assigned to a 2013 Volvo with I Shift...

What company do u work for if you dont mind me asking ?

 

Still enjoying your ishift? I was thinking about getting a 780 with the D13 and ishift sometime in the future. Is that what your driving? I have a 2013 670 now with the ISX15 and 10 speed. I love the volvo part but the ISX15 lacks power (mostly because my company got the 400hp one) and seems like it drinks a lot in fuel. I'm just barely getting 7mpgs. I'm curious if the D13 would do any better. Any problems with the ishift at all?

 

That's awesome. I run over here in the northeast and a typical load for me is around 32k. I don't pull too many hills, or not the same as the ones out west and I barely get 7mpgs. So I think your 6.6mpgs is pretty good for what your pulling and where your doing it.

 

Been on a 2012 d13 with i-shift and eco-roll since new 11/12/2011 I run tanker around central mn. and western ws. I love the truck and its performance and I have learned a few tricks that I could share with you all. I do run empty half the time so my mpg is good, last year I averaged 7.83mpg for the whole year. I use the eco-roll all the time setting the jake 6-8 mph higher than the cruise setting. Now I always cruise about 5mph below the speed limits, that way i dont ever talk to the law. My motto with this truck is roll,baby,roll and have found ways to force an eco-roll. With the cruise and jake set when i approach my exits I pull the jake into #1 position for one second and quickly back to the A position. In about 1-2 seconds the truck will eco roll. Sometimes if the terrain is right I could roll safely for 1 mile. When forcing a roll all cruise control rules apply by tapping the brake , manual applying the jake or manually downshifting the I-shift selects the proper gear. I have 200k miles on this truck now and have never had any issues with the tranny. Sometimes when I crest a hill I accelerate enough so that the eco-roll will engage earlier and I can roll for a longer time. Another amazing trick i learned is how to set the tranny to learn to skip shift once I am empty. I normally drive with a really light foot so this trick took me awhile to figure out. When empty go trough the lower 6 gears normally but maybe a little more aggressive but gears 7 to 12 increase your throttle pressure as your rpms increase. This will make the i-shift reconize that their is less load and the next time you stop it should be in 3-4 gear and then will skip shift up. Now I only get this to work about 80% of the time,but it sure makes stoplights more interesting

 

laytonrock

What are the specs on your truck?

 

Nutcase, thanks for your inquiry. I could not tell you the exact specs of the truck as it is a company truck that was assigned to me . What i can say is that it is a 2012 volvo daycab [without the fancy hood] that has a d13 volvo engine equiped with an i-shift 12 speed auto with the premium shifter and the eco roll option. I do not know the exact ratio of the rear ends but doing 70 mph you are out of the operating range [sweet spot] most of my routes are city driving with a 60mph speed limit. I have been getting amazing mpg out of this truck, but as i mentioned in an earlier post most of the time i'm only going 55 mph. I use the eco roll system in this truck at every oppertunity i can safely do it and it has acctually been fun to find new places where i can utilize it. Hope this helps some sorry i dont know the diff ratio but i find out from my soup and get back to you. Happy trails

 

There should be a decal on the door jam of the drivers door. It will usually list the rear end ratio, transmission, color, etc.

What about tire size?