Colorado 7 / Trailblazer long range fuel tank

4x4Dog

New Member
#1
Maybe a long shot here but anyone know if a replacement long range fuel tank has been developed for the Coloardo 7 / Trailblazer?
I have a MY17 Trailblazer, so far brown davis says there's not enough room for a bigger tank, and long range automotive lilydale says they haven't tried but willing to look into it. Not keen on relocating the spare wheel so an auxililary tank is probably out of the question. I'm in Vic
Cheers
 

Tink

Well-Known Member
#2
ARB do a 130l (?) poly replacemnt tank for the Isuzu MUX. The Collie 7 and MUX used to be almost identical.
Tink
 

4x4Dog

New Member
#5
Cheers, yes it turns out ARB has the frontier long range tank 112L for C7, just not sure if compatible with the Trailblazer but 99% sure it would be.
Tbh I'm not sure it's worth it given i will only get 34L extra. @Ziggy can i ask what did yours cost?
 

Tink

Well-Known Member
#6
Dmax has a 76l tank, MUX has a 65l tank.
Do the Holdens have bigger tanks in their wagons?
Tink
 
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4x4Dog

New Member
#8
76L standard tank in the Trailblazer.
ARB pricelist says $1290.
Hard to justify i reckon, would take dozens of very remote trips for payback, and when i do need to extend range i can put 2 or 3 squat jerrys up top at $40 ea.
 

Ziggy

Well-Known Member
#9
Yes. I did the Simpson first time around with some quality jerries strapped in the back. It was awkward but did the job.
With only 65l tank standard though it was worth stumping up for a LR unit given the outback legs we do. That was before ARB bought out the crowd that developed this tank so we didn't pay the ARB tax.
 
#11
the "trailblazer" is a Colorado 7.
it was sold in other countries as a trailblazer but they called it a Colorado 7 here in Australia then they decided to go with the trailblazer name here when they did the my17 facelift to create a bit more collie7 hype but they are the same vehicle so if you have a Colorado 7 and see something advertised for the trailblazer pretty much everything will fit from the trailblazer apart from the headlights and dash because of the facelift they did on all the colorados.
 

Kippie

Well-Known Member
#15
My LRA tank is 135 litres compared to the original 80 litre one. The fuel gauge stays on full for the first 500 km or so. It then starts moving. I do not really pay attention to the gauge, but use the trip meter. When it's around 1000 km I start looking for a fill up.
 
#16
My LRA tank is 135 litres compared to the original 80 litre one. The fuel gauge stays on full for the first 500 km or so. It then starts moving. I do not really pay attention to the gauge, but use the trip meter. When it's around 1000 km I start looking for a fill up.
Then i would guess it is not designed properly because the sender unit does not measure liters so 50 or 5000 does not matter to it because it should measure the level in the tank and if it was designed properly then the gauge on the dash would display the level regardless of its capacity.
 

discomatt

Well-Known Member
#17
Why not put the spare on the back and go an extra tank? My D4 has this setup and its great, 190l of fuel and well over 1500km range, spare is easy access when needed not like the stupid under body design.
Ever tried to get a wheel out when touring and everything is covered in crap and your on a muddy road with a blown tire that you then need to get back up under the car and the winding mechanism is half siezed up because its never used or serviced ?
Once you have done that never again...
 

CaptainBanana

Well-Known Member
#18
Why not put the spare on the back and go an extra tank? My D4 has this setup and its great, 190l of fuel and well over 1500km range, spare is easy access when needed not like the stupid under body design.
Ever tried to get a wheel out when touring and everything is covered in crap and your on a muddy road with a blown tire that you then need to get back up under the car and the winding mechanism is half siezed up because its never used or serviced ?
Once you have done that never again...
Probably $4,000 for bumper, carrier and second tank vs around $1300 for a long range tank.
 

CaptainBanana

Well-Known Member
#19
Then i would guess it is not designed properly because the sender unit does not measure liters so 50 or 5000 does not matter to it because it should measure the level in the tank and if it was designed properly then the gauge on the dash would display the level regardless of its capacity.
The tank probably just had some small sections that sit above the float to get the most possible usable size in there. The floats probably submerged and reads full until the fuel drops to its minimum exposed level and then it floats. In theory it probably reads correctly all the way to empty.
 

CaptainBanana

Well-Known Member
#20
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After spending so much money on my lemon 2 years ago only to sell it for a massive loss (almost 30k and I'm still happy it's gone) I promised I'd try to be more clever this time and not let good looks or big brands drive any purchases.

So when it came to extra fuel I made these cross bars, 2 angle iron bases and 2 tanks for about $150 and now I have 40 litres more juice and had $1300 left to spend on beer.

The question I have is how often do you need the extra fuel and can you find another solution for those times?
 
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