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Larger Capacity Fuel Tanks

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26K views 30 replies 19 participants last post by  Mcotto1  
#1 ·
Looks like over the years people on Cfans & here have been looking for but never really finding a replacement fuel tank with increased capacity. While looking into a not-to-far off mod, I cam across a larger capacity fuel tank in Aussie-land for the Dmax's & Holden Colorados. So, for shits & giggles :kiki: I started to investigate.

The Longranger is the tank I could find info on -- they have a 129L version (~34gallons).

OEM Isuzu Dmax Tank compared to Longranger:
Image


Longranger installed:
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It's significantly bigger & whenever I get around to it next I was going to compare the underneaths of our trucks to the Dmax to see if this is even compatible. The tank is much more exposed BUT may be perfect for the type of driving that I do (nothing hardcore). Not sure if I'd go this route but figured I'd pass on what I found; shipping would likely be horrendous, but I'd try to find an expat coming back to throw it in their moving shipping container...
 
#7 ·
Oh I am subscribing to this one. I can't even make it to Vegas on one tank
is your truck stock or what? i have no problem driving to vegas and having fuel to drive around vegas before coming home.



there are plenty of people who can make custom tanks here in the states.
for the price of shipping that from oz to here im sure itd be much cheaper to have it built here.
 
#10 ·
Mother of god (super trooper voice)


34gallons? That's insane. And would need a beefy skid plate for sues. I'm talking steel, not alum (sorry James. Lol)
 
#12 ·
Personally I want a bigger tank; it'd be nice not having to worry about fueling up so much when I make my longer winter trips for snow-machining. I've thought about an extra tank in the bed that gravity feeds -- but in all reality that's lost bed space (I already carry 15-20gal extra for snow machine fuel). If there's room underneath for a bigger tank, then man that's the way to go!

Concerning the durability -- the aussie forum where I found information on this tank actually holds up pretty well. Now they may not do rock crawling, but some of these rigs with the above tank have gone through some pretty impressive off-roading; to the point where a few have stated that they've lost a few liters of capacity from semi-collapsing the tank.

And weight isn't that bad -- 34gal at 7.29ppg = ~250lbs. It's only ~15gallons more than our OEM tank and that's only another 110lbs in fuel. Not the greatest thing for our soft springs... but I already have air bags ;)

Since shipping would be ridiculous from there, I'd entertain the idea of getting one custom fabbed... BUT there are limited places up here that can do this project. I'd love to work with a fab shop in the Lower 48 to make a larger tank so that it's available to more people (since shipping to/from AK may be a killer).
 
#14 ·
Has anyone just looked at running dual tanks like take a blazer rear tank and put it between the frame rails in the back

Get a hitch tire carrier for your spare and cut the crossmember out in the rear and make a new on that fits a new tank then just get a switching valve and switch from an older chevy with dual tanks

Not sure if the k5 blazer tank would fit or not but I'm betting it would fit between the rails as the k5 have very narrow frame
 
#19 ·
This would surely contribute to the already known Chevy lean issue :hulk:
 
#22 ·
had a buddy build it for me. Its not done yet, still needs a few things but it should be done soon.
If you could get measurements and pictures, you could sell them as a set of plans. People that have the fab skills could build them themselves, and people that don't can have a shop build them and save on shipping. I'd be interested in a set of plans if the price wasn't too steep, and you could recoup some of the money you spent building the tank.
 
#23 ·
... its a rectangle lol you dont need plans. Look up the greer tank calculator and you can put in different measurements and it'll tell you the volume of the tank
 
#26 ·
More fuel would be nice I like the Idea of running two tanks one on each side. to help out with the lean and to even out the ride. Then your reserve fuel is ~19 gal
 
#28 ·
I like the take the spare out and put it on a hitch mount or small bed mount. Fab up a tank for where the spare was and either put a switch to go from one tank to the other, our connect the two and maker out dual chambered feeding from the higher tank to the lower, but connecting our plastic tank to the more than likely metal fabbed tank may cause a few issues. This is still cool though, especially to someone like me who doesn't have access to the tools to fab one myself.