20 gallon gas tank swap - Ranger-Forums - The Ultimate Ford Ranger Resource


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  #1  
Old 04-14-2010
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20 gallon gas tank swap

hey guys so im new here just picked up my 2000 ranger 4*4 4.0 supercab last week. i was expected the ****ty gas mileage and had grown used to it from my awd astro van... the thing that bothers me is the fact that the tank is only 16 gallons and i can barelly get 250 miles out of the tank... a buddy of mine has i believe a 93 he says hes got a 20 gallon tank on his.. i dont kno if this is true or even if they've ever made the rangers with a 20 gallon tank but if they did my question is has anyone ever attemped such a swap or anyone kno if its even doable.. thanks guy
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Old 04-14-2010
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Im pretty sure all the late model extended cabs all had the 19.5gal tank along with the std cab long box. The std cab short box came with the 16gal tank.
250miles out of a tank sounds right for a 4.0 though. Sad i know.
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Old 04-14-2010
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you think the swap would be possible im pretty sure he does have the long box mines a short box
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Old 04-14-2010
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Is the extra 50-60 miles per fill-up worth the trouble?
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Old 04-14-2010
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thats what i was thinking but if its been done before and was relatively painless (even tho i seriously doubt it would be) i think it would be a pretty good idea... why ford ever went to the smaller tanks boggles my mind i mean 250 miles out of a pick up is ****
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Old 04-14-2010
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Quote:
Originally Posted by Dangerranger01 View Post
Im pretty sure all the late model extended cabs all had the 19.5gal tank along with the std cab long box. The std cab short box came with the 16gal tank.

x2 agree that all ext cabs should have a 20ish gallon tank. my reg cab, according to the owners manual is 16.5 gallons. i've pulled into the station on a couple occasions sputtering. put 18.75gallons in.

i started putting an ext cab tank in my truck, got as far as putting the straps on and found a hole in the back of it....
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Old 04-14-2010
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depends on how much trouble that is, If its a bolt on mod then I would say absolutely. I would love to have a larger tank on mine, but there aren't many options and nothing bolt on as far as I know.
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  #8  
Old 04-15-2010
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I get 250-275 with my 16 gal V6....
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  #9  
Old 04-15-2010
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I want to say I have the 19.5 gal on my 99. At least thats what the vin lookup told me. But ive never been able to get more than 17 in there. And thats after driving around with the needle on empty till i couldnt take the pressure, lol. And my 3.0 gets about 250-260mi out of my "tank" (17gal).
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  #10  
Old 04-15-2010
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Well right now I'm at 150 miles on half a tank on my 2.3. And I thought that they get bad milage. Well in the winter it did. I still have about 20-30 miles left in the tank. I'm on E right now
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  #11  
Old 04-15-2010
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Quote:
Originally Posted by offroadn_redneck View Post
I want to say I have the 19.5 gal on my 99. At least thats what the vin lookup told me. But ive never been able to get more than 17 in there. And thats after driving around with the needle on empty till i couldnt take the pressure, lol. And my 3.0 gets about 250-260mi out of my "tank" (17gal).
I pushed my fuel light a tank ago. I put in 18.7 gals. I was quite happy with myself. I drove about 45-50 miles with the fuel light on. I filled up at 370 miles or so. I average about 300-330 a tank.

I think you need a different front cross member on the tank. IIRC the small tank cross members were not bent to fit the tank, seeing that the tank overlaps that forward member. Other than that I would think it would be drop in.
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Old 04-15-2010
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Quote:
Originally Posted by trextegra View Post
hey guys so im new here just picked up my 2000 ranger 4*4 4.0 supercab last week. i was expected the ****ty gas mileage and had grown used to it from my awd astro van... the thing that bothers me is the fact that the tank is only 16 gallons and i can barelly get 250 miles out of the tank... a buddy of mine has i believe a 93 he says hes got a 20 gallon tank on his.. i dont kno if this is true or even if they've ever made the rangers with a 20 gallon tank but if they did my question is has anyone ever attemped such a swap or anyone kno if its even doable.. thanks guy
We need some clarification here.....


Are you only filling the truck up with 16 gallons? Because as far as I know, Supercabs all have 19.5 gal tanks, at least 98+ trucks. If you're filling 16 gallons and not waiting til the "check gage" light turns on, that sounds about normal. When I drive about WITH the "check gage" light on, I still fill it about 17 gallons. If I really push it, 18.5 gallons. The light turns on with 2.5-3 gallons left in the tank. And just so you know....the fuel gauge is in no way accurate. lol.

250 out of a 4.0 4x4 supercab is about normal. With mixed driving. 300+ is easy if mostly freeway.


Swapping tanks sounds like too much work for little gain. But still, you've got the big tank as it is.
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Old 04-15-2010
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^^^Absolutely correct. All 99 Ranger supercabs, 4x4 or 4x2, had a 19.5 Gallon tank. Check the back pages of your owners manual or see my signature for a link.

Some regular cab/long bed Rangers had a 20 gallon tank but it is not a bolt-on to your truck and not enough an advantage to bother with.

Ford practice is to give about 50~60 miles to totally empty when the Low Fuel indicator ("Check Gage" light) comes on, assuming average driving, conditions and truck maintenance. That is just about what you would get in an average Ranger with most Check Gage lights coming on with about 2.5~3.5 gallons left.

A practical solution is to simply drive deeper into the low fuel light. Just hit the trip odo when the light comes on and drive as far as you dare. To be safe, I wouldn't go more than about 40 highway/30 city miles. Your call.

[This assumes that the truck has a factory tachometer. The tachless clusters do not have any kind of low fuel indication other than the fuel gauge. To the best of my knowledge, all 99 4x4's came with tachs as standard equipment.]
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Old 04-15-2010
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i get about 335 from a tank when the warning comes on with my 2.3 and 16 gal
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  #15  
Old 04-15-2010
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Thats my biggest problem. I dont have a gas light that shows up when Im low on gas. I think the previous owner figured that the best way to get rid of the check engine light was to melt it out. I have a big melted spot on my cluster where i assume the check engine light was. So i have to drive around and put my faith in my scangauge and when it reads 0.0 next to gas, i fill up and put a little over 16 in it
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Old 04-15-2010
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The Check Engine Light is for engine diagnostics. It is not a low fuel level reminder.

The Check Gage Light has three triggers:
  • High coolant temperature
  • Low oil pressure
  • Low fuel level

For 1996~2000, there were 2 different clusters available, with tach and without tach;
  • Cluster with tach had Check Engine Light and Check Gage Light
  • Cluster without Tach had Check Engine Light Only (no low fuel reminder)

So, if you don't have a tach in your 99, it never had a low fuel reminder light from the beginning. If you want one, swap in a 98~2000 tach cluster and you should be all set.
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  #17  
Old 04-15-2010
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Oh, ok. Yea, i dont have a tach on my cluster (another thing on my "wish i had" list, lol)
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  #18  
Old 04-15-2010
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my '01 supercab 4.0L gets around 300 miles to a tank which i've come to accept.
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  #19  
Old 04-15-2010
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I dont mean to be the one to throw in conflicting information, but my 00' had no tach AND a low fuel light....
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Old 04-15-2010
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Quote:
Originally Posted by StrangerRanger View Post
I dont mean to be the one to throw in conflicting information, but my 00' had no tach AND a low fuel light....
Interesting. That combination is not documented in the 2000 owners manual.
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  #21  
Old 04-15-2010
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Quote:
Originally Posted by trextegra View Post
thats what i was thinking but if its been done before and was relatively painless (even tho i seriously doubt it would be) i think it would be a pretty good idea... why ford ever went to the smaller tanks boggles my mind i mean 250 miles out of a pick up is ****
Ford most likely would have gone to a smaller tank for weight savings to try and maintain fuel mileage. I'm pretty sure when the body styles changed and they went to the small
tanks the truck also got heavier
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  #22  
Old 04-16-2010
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Originally Posted by rwenzing View Post
Interesting. That combination is not documented in the 2000 owners manual.
Yeah. Its a mystery to me to. I still have the cluster if anyone wants it. I traded up to a tach one. I only remember that it had a fuel light cause it was my first vehicle that had one and I was super excited about it. lol!
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  #23  
Old 04-17-2010
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i have a 93 and mine has a 60L tank. my last tank of fuel i didnt even get 400kms out of it.. which is less than 250miles.
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  #24  
Old 04-17-2010
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I get about 220 with a quarter left on my 3.0 v6....im pretty sure my 31s MT tires made that mileage drop haha.
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  #25  
Old 04-17-2010
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i get between 120-160 city/on post driving on about 12-14 gallons.i average around 11mpg out of my truck.mine sucks ***..highway i see anywhere from 250-300 on about 15-16 gallons all highway

4.0l sohc
20" wheels and 34" tires 2wd with t-case and 4.10 gears..
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