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#1 |
Registered User
![]() Join Date: Apr 2013
Location: Olympia
Posts: 100
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Aux fuel tank opinions
Just like the title says my Highlander has an aux fuel tank. I dropped it the other night to check the tanks condition before i started using it. And it all checked out very clean on the inside holds a full tank with no leaks.
My debate now is if I really want to put it back on. It was held by two bolts hanging from the bed, I'm not sure if I like how it all holds just off the bed floor. Also my tank does not have the sender on it so I would have to run of the aux tank then switch to main once its empty to be able to rely on it or add a sender unit to the tank. And final how it hangs below the bottom of the bed for appearance. Im asking for your guys opinion. Lets hear it who has removed them and regretted it or who has left them and loves them. Thanks for the input and help!! |
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#2 |
Registered User
Join Date: Aug 2010
Location: Edwards, CA
Posts: 7,503
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Re: Aux fuel tank opinions
They have been used very successfully for many years. Most aftermarket tanks are not as refined as the factory aux tank installation but still very workable. Not having a sender is not a big deal just a fuel management task.
If you don't like how it "looks" then there is not much that can be done. Probably your biggest problem keeping it is if you will drive it enough to keep the fuel fresh. With todays fuels longterm stabilility is much more of an issue than it was. If it is clean and works I'd use it. Like you said it just needs to be run down first then switch over to the main tank just like in the day. The drill was to run down the aux tanks and plan you next fuel stop on the gauged tank. On the heavily loaded trucks with a full size campers and single digit mileage it worked and well.
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Thanks, Tim * VIN/Model Decoders * Power Team Charts (engine/transmission/gear ratio) * Post Your Pickup SPID ** Blazer SPID ** Suburban/Panel SPID * RTFM ... Read The Factory Manuals... download 'em here Highlanders ** Do you have a 1972 Plaid Pickup? ** Plaid Blazer ** Plaid Suburban |
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#3 | |
Registered User
Join Date: Feb 2000
Location: Center City, MN, USA
Posts: 3,254
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Re: Aux fuel tank opinions
Quote:
I bought a generic sender and gauge from JC Whitney and mounted it knee-knocker style under the ignition switch. Prior to that it was run it until the truck started bucking, open the door to gain access to the switch (a real treat in 70mph traffic), switch over, and continue on with the seat tank. Now I can actually plan ahead because I know how much gas is in there. I don't think the aux tank looks bad hanging down a little bit but I have a 4wd. I'm sure the gravel scrapers out there will disagree with me on that point. I did paint it when I had it out to have a leak repaired about 10 years ago. If I remember correctly I POR-15'ed the outside and covered that with rattle can gray top coat. I especially like the fact that in my long, salty winters here in MN I can fill up both tanks before the salt comes in November and make it until now when it is again safe to drive on the roads to the filling station. I usually have enough fuel to keep the driveway plowed and drive it out to the fish house. I found a picture of my gauge. Trans temp on the left, aux fuel on the right.
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'70 cab, '71 chassis, 383, TH350, NP205. '71 Malibu convertible '72 Malibu hard top Center City, MN |
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#4 |
Proprietor of Dale's Corner
![]() Join Date: Nov 2012
Location: Vacaville , CA
Posts: 16,103
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Re: Aux fuel tank opinions
My aftermarket tanks have a spot for senders. stewart warner make the sender just have to rig a switch to where you can switch the gauge from one tank to the other
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"Some Days Chickens And Some Days Feathers" Dale XNGH ECV Sam Brannan 1004 R.I.P. 67ChevyRedneck R.I.P. Grumpy Old Man |
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#5 |
Registered User
![]() Join Date: Apr 2013
Location: Olympia
Posts: 100
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Re: Aux fuel tank opinions
The look of it being low doesn't bother me to much. And I wont be lowering it to much more than it is now so scraping wont be an issue. I think with having the fuel door there and the tank being in good quality I am going to use it. I just needed a nudge to do it. Thanks!
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#6 |
Registered User
Join Date: Aug 2010
Location: Edwards, CA
Posts: 7,503
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Re: Aux fuel tank opinions
Thr factory aux tanks used a switch to select senders between tanks for the single dash gauge. The GM accessory tanks were also offered with this. So setting up a switch/circuit would be easy however you do need to have the correct GM specific sender signal values which are not what the generic aftermakets have.
__________________
Thanks, Tim * VIN/Model Decoders * Power Team Charts (engine/transmission/gear ratio) * Post Your Pickup SPID ** Blazer SPID ** Suburban/Panel SPID * RTFM ... Read The Factory Manuals... download 'em here Highlanders ** Do you have a 1972 Plaid Pickup? ** Plaid Blazer ** Plaid Suburban |
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#7 |
Registered User
![]() Join Date: Apr 2013
Location: Olympia
Posts: 100
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Re: Aux fuel tank opinions
oh ok good to know. I would mind looking into setting it up with the sender to so i could gauge both. I would need to drill the tank mine isnt set up for a sender at all.
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#8 |
Registered User
Join Date: Aug 2010
Location: Edwards, CA
Posts: 7,503
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Re: Aux fuel tank opinions
Wade through this and you will find all sorts of tidbits.
http://67-72chevytrucks.com/vboard/s...d.php?t=560607
__________________
Thanks, Tim * VIN/Model Decoders * Power Team Charts (engine/transmission/gear ratio) * Post Your Pickup SPID ** Blazer SPID ** Suburban/Panel SPID * RTFM ... Read The Factory Manuals... download 'em here Highlanders ** Do you have a 1972 Plaid Pickup? ** Plaid Blazer ** Plaid Suburban |
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#9 |
Registered User
![]() Join Date: Apr 2013
Location: Olympia
Posts: 100
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Re: Aux fuel tank opinions
Perfect thanks a bunch!!
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