3rd Gen High Performance and Accessories (5.9L Only) Talk about Dodge/Cummins aftermarket products for third generation trucks here. Can include high-performance mods, or general accessories. THIS IS FOR THE 5.9L ONLY!

I LOST MPG W/ MY NEW 35's, NOW GOING TO 33's

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Old 01-06-2008 | 11:02 AM
  #46  
drillpipe's Avatar
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From: OK
Something everyone may consider is running a fuel additive. I run Stanadyne, and I know that if I run a couple tanks without it I will loose a couple mpg's. It will drop from 16 to 14. The mileage increase more than covers the cost.
Old 01-06-2008 | 02:11 PM
  #47  
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From: Georgia... Iowa Bound
Originally Posted by VFDFireman
It seems to me the folks with the autos are the ones that are loosing the mpgs for the most part, while the guys with the G56 and the steep OD are either getting the same mpg or slightly better.
thats kinda of what it looks like to me also, the G56 is geared to low for the stock tires. Like someone said I think the 285/75 are perfect tall to get the RMPs down and skinny
Old 01-06-2008 | 05:09 PM
  #48  
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Originally Posted by Hintz
thats kinda of what it looks like to me also, the G56 is geared to low for the stock tires. Like someone said I think the 285/75 are perfect tall to get the RMPs down and skinny
x2.... except 35x12.50 gave me the best highway rpm.
Old 01-06-2008 | 07:40 PM
  #49  
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i get around 340 to 380 per tank. i got 35's too. Thats mostly interstate driving. But not slow driving either. 85 usually
Old 01-06-2008 | 09:14 PM
  #50  
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From: Phoenix, AZ
Originally Posted by dieselfumes57
i get around 340 to 380 per tank. i got 35's too. Thats mostly interstate driving. But not slow driving either. 85 usually
Wow! I get at least that with 100% stop and go traffic....around 500 per tank on the freeway....
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