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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Oct 2003 Posts: 5,152 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Oct 2003 Posts: 5,152 | What would be acceptable fuel economy the way you want to use the truck?
The Toyota swap is not something I've seen done so I don't have a feel for how well it would work. I was not even aware of the Toyota Diesel so that should give you an idea how helpful I could be there....
I think short of a modern EFI motor and overdrive you'll have difficulty beating 20 mpg is regular usage running gasoline.
However in my area Diesel was more expensive than gasoline last time I looked. Only if you get quite a bit better mileage without giving up something else you want does it pencil out as a better option.
The last time I penciled it (Excel worksheet) out a Diesel swap would cost enough more than my preferred gas motor that it would take 20 years before Diesel really saved me any money. That was based on my expected usage, if you are going to drive a lot more miles each year than I do, your payoff could be a lot faster.
1955 1st GMC Suburban | 1954 GMC 250 trailer puller project | 1954 GMC 250 Hydra-Matic | 1954 Chevy 3100 . 1947 Chevy COE | and more...
It's true. I really don't do anything but browse the Internet looking for trouble... | | |
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