Is 25mpg/city possible in a full size pickup?
Hello all. My current ride is a '95 Chevy k2500 with the 7.4 gasser/auto. This truck has been a very good truck and tows well. The down side is that it gets 10-11 mpg hwy and probably 8-ish in the city. I will be selling/trading this truck in the near future and I'm trying to plan ahead and start gathering parts for a swap. My question is; can I get 25 mpg in the city from a full size truck with some sort of diesel engine? I'm not really interested in the popular cummins swaps but I don't know what all engines are available to swap. I'm not going to hot rod the truck but it will need to be a daily driver in the city. My only requirements are that it be smooth running and not real loud. Any one have any ideas on what a good engine would be? Am I asking for the impossible? Don't hold back on your thoughts on this. My goal is to have a nice truck that gets great mileage. Thanks!!
PS. I'm open on make and model of truck as long as its a full size 4x4. |
I get 21 on good days and 19 on bad days and my truck weighs 9600 lbs
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Originally Posted by wes-in-nc
(Post 424307)
Is 25mpg/city possible in a full size pickup?
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I have a buddy that swapped a 4BT into his 3/4 ton dodge two wheel drive. The truck originaly had a 5.9 gas engine and a NV4500. I know you said you weren't interested in doing a Cummins swap, but his truck averaged 26 on the freeway driving reasonably.
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Originally Posted by screaminseema
(Post 424467)
I have a buddy that swapped a 4BT into his 3/4 ton dodge two wheel drive. The truck originaly had a 5.9 gas engine and a NV4500. I know you said you weren't interested in doing a Cummins swap, but his truck averaged 26 on the freeway driving reasonably.
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You are aware that you can add a balance shaft to the 4BT? The insulators also play a big role in transmitting vibrations to the interior compartment.
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Originally Posted by screaminseema
(Post 425477)
You are aware that you can add a balance shaft to the 4BT? The insulators also play a big role in transmitting vibrations to the interior compartment.
25mpg city isn't doable without an engine swap, other than the 1st gen dodges which aren't going to be anywhere near as comfortable as your 95 2500. Do you want to just swap something into your current truck or find a different truck? The only other diesel for a swap the I know of to consider is the 2.5L I5 from the Dodge Sprinter vans. They use the 545-rfe 5 speed auto trans (same trans behind all the truck/jeep Hemi engines). It's a common rail injection system and makes plenty of power, astronomically smoother and quieter. The transmission has plenty of upgrades available but really doesn't need a whole lot, it's a good trans. If you want a manual, I'm sure you could get a bellhousing or adapter to hang an NV4500 behind it but I don't know that for sure. |
Originally Posted by greasemonkey
(Post 425605)
Ditto^^^. Those things run A LOT smoother with a minimal amount of work and good insulators(engine/trans mounts). Add a balance shaft and have a machine shop balance the rotating assembly.
25mpg city isn't doable without an engine swap, other than the 1st gen dodges which aren't going to be anywhere near as comfortable as your 95 2500. Do you want to just swap something into your current truck or find a different truck? The only other diesel for a swap the I know of to consider is the 2.5L I5 from the Dodge Sprinter vans. They use the 545-rfe 5 speed auto trans (same trans behind all the truck/jeep Hemi engines). It's a common rail injection system and makes plenty of power, astronomically smoother and quieter. The transmission has plenty of upgrades available but really doesn't need a whole lot, it's a good trans. If you want a manual, I'm sure you could get a bellhousing or adapter to hang an NV4500 behind it but I don't know that for sure. I didn't know about a balance shaft for these engines. Actually I know very little about a diesel engine but I'm trying to learn. I will be buying another truck to do this swap on. My current truck is a regular cab and I have a habit of keeping a truck for several years so I am thinking about an x-tra cab or short bed-crew 4x4. I have looked at the Sprinter engines and I saw a few on ebay but they are very expensive. These sound quite to me and seem to idle smooth but I have never driven one. This is not a swap question but Whit's post has me thinking now. Do you think a Duramax, 6.0PSD, or Cummins equipped newer truck could do 25mpg city? Every thing I read is about getting the most power and torque out of these engines but could you go the other way to get the most mpg? Sorry this is long, sometimes I start to ramble when I get going, lol.:w2: |
The only way you will get that kind of mileage from any of the big three, is to put one of those engines in a very light truck. A 6bt in an S-10 comes to mind.
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Originally Posted by screaminseema
(Post 425891)
The only way you will get that kind of mileage from any of the big three, is to put one of those engines in a very light truck. A 6bt in an S-10 comes to mind.
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