Jump to content

Fuel Tank

Ken Wheeler
 Share

Recommended Posts

MG386 Enthusiast

MG386

Posted
Posted

There is much more room under there for a longer tank, I wonder if there will be an option for an aftermarket tank someday. Maybe they saved this space for a DEF tank on diesel models, bit they should have offered a larger tank for gas trucks. e7176b3cfcbe688c0110bd6a6d8d2fcc.jpg

Sent from my Pixel 4 XL using Tapatalk

redwngr Senior Enthusiast

redwngr

Posted
Posted (edited)

Tank size is one reasons  I'm back in a 2500. (changed in 2020, but they have been all 36 gallon since 2011)

 

 

There are larger tank sizes available from aftermarket for the 2500/3500 diesels --- but they are not offered for gasoline. 

I suspect the probability of the aftermarket offering a larger gasoline tank for a 1500 is very low. 

 

Even the bed mounted 'transfer tanks' (which are used primarily for fueling equipment rather than direct connection to the vehicle) seem to not be available with gasoline certification.

 

I regularly run 580 - 600 miles on a fill with the dmax and factory tank.  

Of course that's not towing. 

Also, it won;t do that when it is used strictly for short run 'in town' type work. 

Edited by redwngr
  • 1 month later...
f8l vnm Senior Enthusiast

f8l vnm

Posted
Posted

This should be a buy up option like the ford and ram have. Why not ? 

  • Thanks 1
Colossus Senior Enthusiast

Colossus

Posted
Posted
On 12/15/2019 at 9:58 AM, redwngr said:

I regularly run 580 - 600 miles on a fill with the dmax and factory tank. 

I remember being able to do that in my 08 Duramax long bed, loved it.

My current 08 standard bed has the smallest tank in there.  I'm on E when I've used 21/22 gallons!  Uggh. 

RE1 Enthusiast

RE1

Posted
Posted

More smoke and mirrors from GM. 
 

They limit tank size to save weight and improve MPG. 

redwngr Senior Enthusiast

redwngr

Posted
Posted
6 minutes ago, Colossus said:

I remember being able to do that in my 08 Duramax long bed, loved it.

My current 08 standard bed has the smallest tank in there.  I'm on E when I've used 21/22 gallons!  Uggh. 

Starting with the new chassis in 2011 long and standard bed trucks both came with  the  36 gallon tank. 

 

(I went form a long bed '04 to a standard bed '10 and was surprised how much I missed the larger tank.  They fixed that in '11 and I quickly upgraded.  They '18  2500 till has a 36 in the 6.5' box and is the one being run in the previous post))

redwngr Senior Enthusiast

redwngr

Posted
Posted
2 minutes ago, RE1 said:

More smoke and mirrors from GM. 
 

They limit tank size to save weight and improve MPG. 

I suspect you are right.

But doesn't apply to the HD's. (ya I know, this is the 1500 section)

 

One of the mpg videos about the 3.0L was talking about the rating difference between the sierra and silvarado.  part of the explanation is that the fed regs require the weight of an option be included for testing if the 'take rate' for the option is over a certain percentage.  Sierra's typically sell with more content so higher weight used.  That and slightly less aerodynamic and 3.0 in sierra ends up with a lower rating.  I would guess the regs also require the weight used for the rating must also include a certain % of max fuel weight. 

 

From time in tier one auto suppliers I do know that if you can save them weight on any vehicle, it is a big deal.

 

Better economy ratings sell vehicles(for some). 

 

There is also the fleet cafe thing that needs to be met.

RE1 Enthusiast

RE1

Posted
Posted
On 1/19/2020 at 3:03 PM, redwngr said:

I suspect you are right.

But doesn't apply to the HD's. (ya I know, this is the 1500 section)

 

One of the mpg videos about the 3.0L was talking about the rating difference between the sierra and silvarado.  part of the explanation is that the fed regs require the weight of an option be included for testing if the 'take rate' for the option is over a certain percentage.  Sierra's typically sell with more content so higher weight used.  That and slightly less aerodynamic and 3.0 in sierra ends up with a lower rating.  I would guess the regs also require the weight used for the rating must also include a certain % of max fuel weight. 

 

From time in tier one auto suppliers I do know that if you can save them weight on any vehicle, it is a big deal.

 

Better economy ratings sell vehicles(for some). 

 

There is also the fleet cafe thing that needs to be met.

Yeah, I’m referring specifically to the 1500s. Those have become all about efficiency/MPG with all the associated garbage tech and smoke and mirror tricks like smaller gas tanks. 

Gregorio Enthusiast

Gregorio

Posted
Posted (edited)

I've heard from the aftermarket guys that they cannot modify the gas tank because it is a controlled part of the emissions system.  That being said, has anyone thought about swapping the 36 gallon tank from the 2500 into a 1500?  I'm sure there are a lot of differences underneath the two model trucks but the bigger tank is offered with the same standard size bed.

Edited by Gregorio
jlong1984 Enthusiast

jlong1984

Posted
Posted
On 12/14/2019 at 7:15 AM, Ken Wheeler said:

When is gm going to add bigger fuel tanks to there trucks?

Never. In fact, they made them smaller. My 14 and 16 1500 Crew Short Beds had a 26 gallon tank, now it's a 23 gallon in the 2019. :confused:

 

Really makes you wonder, because this has been a common complaint on the forums for years. 

Supercup Enthusiast

Supercup

Posted
Posted (edited)

I have been looking for a replacement tank that is larger than stock 26 gallons in my 2019 AT4.  I have used Transfer Flow for replacement tanks in my last 4 trucks (3 diesel) - for my 2014 Raptor they made a 50 gallon replacement tank, which replaced the stock 36 gallon tank, which was awesome.   26 gallons sucks for road trips and given my commute is 120 miles round trip I am at the gas station three times per week!  For towing even worse - GM should have at least put a 36 gallon tank in the truck.  

 

Right now neither Transfer Flow or Titan have a large replacement tank available.  I have spoken with Transfer Flow and they are developing a larger tank, not sure on size yet and then have to get DOT approval of tank - a process out of their control, so they can't predict when something will be available for the new truck - hopefully by this summer.  I will keep watching to see what comes out as a larger tank is an immediate upgrade when available. 

Edited by Supercup
  • 2 years later...

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Latest Articles

  • Posts

    • Chuck FB
      OCI, not when but why?

      By Chuck FB · Posted

      I am guessing that engines of that design back then had a better ability to be abused and survive longer than a new design engine with the long timing chain and the overhead cams and phasers etc. But I would never guess that an engine could go that far and not fail spectacularly or at least die a slow death. 
    • Grumpy Bear
      OCI, not when but why?

      By Grumpy Bear · Posted

      In the 80's 90's I'd run Honda's 7,500 miles between changes using Red Line HP 5W20 and do it for hundreds of thousands of miles with issues. Back in the day it was an SAE 20 with the HTHS of a SAE 30 and SN add load. It was also very polar. Oxidation VOA was over 120. Besides those motors were SPFI and lean burn tech. I could have likely run it longer but never did.    We had a Toyota bought new I ran on Pennzoil's latest and greatest synthetic of the day with "Penthane". A made up word for a very low dose of PAO. Tried 7,500 mile OCI's in that Group III/VI chemistry and the rings tapped out at 90K. Rocker box wasn't as bad as the one Punch put up but it wasn't good either. Also a SPFI motor.    I'm around 3,750 across the board on these GDI monsters and the oil it tapped out by then usually on TBN/TAN crossover and color. Red Line HP Euro.    The AMSOIL SS brochures tell you to follow the OEM values for the service class but that it can be run up to 25K if monitored. I can't imagine what motor could go that distance and not tap out. I've never owned one.    Yes, I know. Lot's of people do. I'm just not going to be one of them. 
    • Grumpy Bear
      OCI, not when but why?

      By Grumpy Bear · Posted

      I knew a guy in the early 80's that bought a new Monte Carlo and ran it a 100,000 miles without ever changing the filter or the oil. Just kept adding. It looked like that inside.     
    • whenindoubtuseahammer
      My First Project and GMC has me stumped

      By whenindoubtuseahammer · Posted

      Good evening. I was lucky enough to get passed down to me a 2007 GMC LBZ that was my great uncle's. While the underside and rockers are more or less gone I feel like with time I can restore it to working order since it only has 110,000 miles and he put nearly every option he could get without getting the new body style since he did not trust DEF. So far I have done everything I can think of but when I put the key into the ignition nothing happens. I put 2 brand new batteries in it. Cleaned the terminals. Check all the fuses and relays and they all pass with my multimeter. I know I'm missing something that I just cant think of. The only odd thing is the OBD2 port works which makes me think its not the mega fuse. Any advice would be greatly appreciated. 
    • PunchT37
      Casey from the Texas Hill Country

      By PunchT37 · Posted

      Looks nice. I still have my 2000, 1500. Bought a 2025, 1500 for retirement. Feels solid. These trucks have a bad rap on the internet. My brother has a `24 1500, 5.3 with 52,000 miles. No problems at all. Mine hasn`t either but mine`s only at 12,700 miles. Have seen some of these things with 100,000 miles with no problems.

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...