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Re: Dodge/Cummins late model mileage
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Posted by mj on March 30, 2007 at 08:24:20 from (69.85.78.183):
In Reply to: Dodge/Cummins late model mileage posted by fuel miser on March 30, 2007 at 07:18:47:

The 6.7 is not new in that it is just a bigger 5.9 so it should be just as reliable as the 5.9. Plus it's hooked to a new (to Dodge) 6-speed auto w/OD. The addition of the in-pipe 'scrubber' (Particulate Emissions Trap) and EPA-mandated ECM changes for the new emissions regulations necessitated the increase in displacement to maintain torque/horsepower levels at the 5.9 level. The 'new' 6.7 also incorporates a variable-vane turbocharger which also provides braking similar to an exhaust brake but comes as part of the package rather than an as an add-on extra-cost accessory. Unlike GM, Dodge still offers the 6-speed manual as well but the 6-speed auto/6.7 engine combination that I test drove was impressive and I am a manual- shift guy. With my 2005 5.9/6-speed I average around 18 mpg daily driving and 20+ on the road at 65-70 mph; I believe the auto would be comparable. I made a 2500 mi. trip when the truck had only 5K on it and averaged 16.5 with a 5000# trailer behind. This was from Colo. to Wash. state and it never slowed down no matter the grade or headwinds; speeds were kept within 5 mph over posted limit. Is the diesel worth the extra money? Oh, yeah! :-)
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