Just Took My 6.7 On A 6,000 Mile Trip.

[Ram3500Dually]

The overhead is usually out by 1 to 5 MPG. I have never come close to the overhead when I hand calculate

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2008 Ram 3500 CTD 6.7/68RE/3:73 LSD
Previous Rams 90 CC Dually, 94 RC LB, 95 CC SB, 98 QC Dually, 00 QC Dually, 01 QC Off Road, 03 QC Dually, 05 QC Dually REAL TRUCKS DON'T HAVE SPARK PLUGS

[Derekj]

Originally Posted by j120strat

I dont know what that means.

If you pop your hood and look to the right of your latch there is normally a sticker that has a # on it along with a dealer # and date. It reflects what the latest download/flash the truck has in it for the ECU. The latest flash ends with the letters AU and the june flash ends with AT.

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2007 3500 Dually 4x4 Laramie 2FH package,6.7L,68RFE, limited slip, 3.73, sunroof, kicker amp and 2x10", 2500 watt inverter,tint, back up camera,B&W G/N, Edge Juice W/attitude all over a MP-8....,BADP'S 5" TBE ,S&B Air,.....

[Riddler6.7]

my overhead us usually about 8-9% optimistic...

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2007.5 QC SWB 4x4
6.7CTD, 68RE, Inferno Red, Big Horn

[Hounddog]

Originally Posted by j120strat

It was on the overhead.
Is the overhead not correct?

Nah its known to be about 2mpg high. If you actually calculate your mpg you'll find just how much yours is off. This issue isn't new to 6.7's its been there for a while now. My actual figures towing a 32' TT are 10.9....

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07.5 3500, 6.7, 68RFE, 4x4, QC, LB, DRW
Albuquerque, NM

[j120strat]

Well, all mpg aside, this truck tows like a dream. my last truck was a chevy and the new 6 speed w/ exhaust brake beats the allison all day long.

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2007.5 Ram 2500 6.7 liter.