Another milage report - Ram 1500 Diesel Forum
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post #1 of 21 Old 08-04-2014, 10:59 PM Thread Starter
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Another milage report

Yesterday, I took a trip to a friends farm where I hunt and ride horses. It's 150 miles round trip over rolling hills, thru a couple of smaller towns, a small city and only 40 miles of interstate. I drove without cruise control and kept my speed between 5-10 miles over post speed limits. I averaged right at 29.9 when I finally made it home. Many times the average would be in the 31.5 range. In fact until I climbed the long, steep, winding hill to get to my house it was averaging 30.5 MPG.
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post #2 of 21 Old 08-04-2014, 11:44 PM
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Is that hand calc'd or going by the readout? Often times they are different.
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post #3 of 21 Old 08-05-2014, 07:37 AM
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What was the average speed limit? I drive a diesel car and get very good gas mileage with speed limit under 60 and hills do not affect the mileage. My speed limit drops noticeably when I reach 65 and above. Regardless, that's a lot better report than we see on Fuelly. Thanks.
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post #4 of 21 Old 08-05-2014, 09:18 AM
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Originally Posted by scatpack_69 View Post
Is that hand calc'd or going by the readout? Often times they are different.
That's what I have heard, it will help to know which it is.
It might even be worth it to do both and compare.



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post #5 of 21 Old 08-05-2014, 01:39 PM Thread Starter
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It's just the EVIC readings. Even if the EVIC is .5-1 MPG over hand calc, which seems to be the average difference with most that have done the hand calc, that is still pretty good.
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post #6 of 21 Old 08-12-2014, 04:09 PM
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Gears?

What Gears do you have in the rear end? 3.55 or 3.92?
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post #7 of 21 Old 08-13-2014, 09:55 AM
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Originally Posted by Equus View Post
It's just the EVIC readings. Even if the EVIC is .5-1 MPG over hand calc, which seems to be the average difference with most that have done the hand calc, that is still pretty good.
fyi...ours is within .5 of the evic as compared to hand calcs.

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post #8 of 21 Old 08-13-2014, 04:22 PM
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FYI. When I don't tow the EVIC is darn close to right on. Towing is where I see a difference and it's sometimes above or below the hand-calculated figure Just not right on.

Indiana is mostly flat land. I bet you can do real well on secondary roads under reasonable weather conditions. 30mpg would not surprise me. I have seen it here in Florida and done 28mpg on a 300 mile interstate run one day. That was at speeds to 85 mph but mostly 75 - 80 mph.
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post #9 of 21 Old 08-14-2014, 11:38 AM
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We have had six fill ups on our Ram Eco Diesel thus far with the following results:

Actual FE Display
19.87 19.1
20.34 21
20.75 21.7
16.76 16.5
18.84 19.1
18.68 19.2

Generally speaking the actual and indicated is within 0.5 mpg. Our low number was trailer towing 4000 lb. Most of the driving is 70% city and 30% highway.

A good tune should be able to up these numbers a solid 15% and maybe up to 20% in pure highway driving. We are currently developing a tune for the Ram and should have data withing 3-4 months on that.

For this product tuning will have to be completed on a bench as the is no OBD tool on the market that will tune an EDC17 ecm. Maybe this will change in the future. GDE
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post #10 of 21 Old 08-14-2014, 01:26 PM
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looking forward to seeing how these numbers change with a tune with a number of different driving styles.

how much could the tune cost?
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