How accurate is the computer mpg? Accurate enough to base real world milage on? I am comparing two new trucks & will buy one of them. Some members suggested checking mpg on same stretch of road. Sounds good but only IF computer mpg is accurate.

 

Until I put the Edge EZ on my computer was usually within 1 mpg of my hand calculations at the pump.

 

I use the overhead on all 3 of the ones that have graced my driveway to tell me nothing more than what direction the nose of the truck is pointed, in a very general sense of course.

Add some goodies, gadgets, and BOMB's...totally useless.

Matt

 

Mine is always 1.5-2.5 on the low side.Good luck
Odie

 

Mine is almost exactly half a mile per gallon on the short side

 

Mine is about 1 MPG low.

 

about .3 mpg shy before the installation of the EDGE EZ; about 2.1 to 2.3 mpg over after installation. You'll never be able to make an accurate comparison based on a short-term test drive.
Greg

 

I have kept track of mileage since new. I now have over 8000 miles racked up and my overhead is within 1% of hand calculated.

It is sometimes a little low or a little high on a tank by tank basis but that has more to do with how much I top of the tank.

A coworker recently bought a new CTD (after riding in mine!). I recommended that he test drive them on the highway and set the cruise to 65 mph. Then reset the computer and see were the mileage settles in. I realize this is just a rough guide but it may weed out the worst ones. I told him to look for one that does around 17-18mph. Mine will actually do 20+ but I have a 555.

Anyway, I don't remember the exact numbers but of the two that he drove, one showed a significant improvement over the other (both equiped the same). By significant I mean about 2-3 mpg. This may have just been computer diverences but it didn't hurt to try.

FB

 

My 2003 is about 1 to 1.5 mpg on the low side......

 

ditto on the overhead reading 1 mpg low.

 

My overhead reads about 1.5-2mpg low on my bone stock truck.
Scott

 

My 04.5 is always 1.0-2.0 on the low side

 

My is consistently about 3 mpg lower than hand calculated. You would think that one thing a computer does well is add and divide numbers. Why can't they get it right? I had a 2500 with the Hemi in it, and the overhead was within .1 mpg of my hand calc. By the way, my truck is stock.

 

hope mine reads low to

 

Mine was always real close, within a couple tenths, until I got that box . If i keep my foot out of it, the comp is still real close.

The biggest difference I see is my level of patience... Drives me nuts waiting for that dang foam!!!