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  #1  
Old 03-29-2013, 09:18 PM
DieselD DieselD is offline
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Default Mods to increase mpg?

I was doing some noob research, trying to figure out if i'll get the new Ram 3.0 diesel vs a used CTD. And as i was reading up on stuff, i came across the following quote:

"get a 4bt cummins put an 47RE bhind it with a Dana 241 t-case sending it to Dana 44 axles minimum prefer the dana 60 with 3.55 gearing on 35s

Read more: http://forums.*******************/70/6510360/economy-stories-tips/how-to-squeeze-more-mpg-from-a-cummins/#ixzz2OyoXkBVL"

So first off, what's all the jargon being used up there mean?

Second, if I did spring for a used 2500, what sort of upgrades could I do to increase mpg?

Thank u in advance for the knowledge
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Old 03-29-2013, 10:54 PM
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Any mods that claim to increase mpg, if they actually work, will do so insignificantly and may not pay for itself. Consider that all the manufacturers are under significant pressure to increase mpg and if the various mods & snake oils that purport to increase fuel mileage actually were beneficial, the manufacturers would incorporate them in the build. The best thing you can do to obtain the best fuel mileage is keep your truck maintained, maintain proper air pressure in the tires and refrain from an over excited right foot.
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Old 03-31-2013, 10:03 AM
DieselD DieselD is offline
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Bruce, thank you. I tend to agree with you.

I was hop
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Old 03-31-2013, 10:29 AM
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Phone cut me off. Anyway what I was saying was, I was hoping to learn a bit more about every day type ways to increase MPG. Besides all the jargon in that clip that I posted.

Most specifically, I've just started reading about tires and the differences. I was looking at some of the definitions online as to what the numbers on tires mean. But searching these forums, I see a lot of references to tire sizes that don't seem to make sense to me. I've seen people talk about 33s And 36s and such. When I do get my truck, I would like to make a good decision on what higher would be most efficient in terms of fuel. Any thoughts? And what numbers are people throwing around when they say 33's and 35's? My SUV has 265/65r15. Having a tough time seeing where these 30 numbers are coming from
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Old 03-31-2013, 10:56 AM
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Quote:
Originally Posted by DieselD View Post
Phone cut me off. Anyway what I was saying was, I was hoping to learn a bit more about every day type ways to increase MPG. Besides all the jargon in that clip that I posted.

Most specifically, I've just started reading about tires and the differences. I was looking at some of the definitions online as to what the numbers on tires mean. But searching these forums, I see a lot of references to tire sizes that don't seem to make sense to me. I've seen people talk about 33s And 36s and such. When I do get my truck, I would like to make a good decision on what higher would be most efficient in terms of fuel. Any thoughts? And what numbers are people throwing around when they say 33's and 35's? My SUV has 265/65r15. Having a tough time seeing where these 30 numbers are coming from
The 30-series numbers come from how tall the tires are (diameter). If you measure your 265/65R15s from the ground to the top of the tire, that's where you get your 30-something number (probably a 30 or 31 inch tire).
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Old 03-31-2013, 11:15 AM
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Taller tires also don't equate to fuel savings...in fact, it can work against you. Sure, they're making less revolutions per mile, but taller tires will weigh more and the added weight can decrease your fuel economy. If you're looking for better MPGs, it's probably best that you stick with the OEM size rubber.
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Old 03-31-2013, 08:53 PM
DieselD DieselD is offline
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Thanks. Stock seems fine then. Much appreciated.
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