Finding a reliable 80 gallon auxiliary fuel tank helps extend range for boats, ATVs, work trucks, and off-road fleets. This guide highlights five top options, clearly explaining who each one is best for and why. Ideal buyers include long-range boaters, heavy equipment operators, and off-grid travelers seeking durable, US-made construction, easy transfer capabilities, or flexible fuel compatibility. The following table provides a quick reference to each product’s capacity and primary use.
| Product | Capacity | Best For | Brand |
|---|---|---|---|
| RDS MFG INC Rectangular Auxiliary Transfer Fuel Tank | 80 Gallon | Truck or trailer use with rigid steel build | RDS MFG INC |
| RDS MFG INC RDS 71793 80 Gallon Rectangular Tank | 80 Gallon | Diesel or gasoline transfer with gravity feed option | RDS MFG INC |
| RDS MFG INC 71792 Rectangular Transfer Fuel Tank | 80 Gallon | Convenient aluminum, certified dimensions for mounting | RDS MFG INC |
| MUKETA Marine 80 Gallon Fuel Bladder | 80 Gallon | Extended range on boats with flexible bladder design | MUKETA |
| DEE ZEE DZ92556B Transfer Tank | — | Heavy-duty aluminum transfer tank for trailers and trucks | DEE ZEE |
RDS MFG INC Rectangular Auxiliary Transfer Fuel Tank — 80 Gallon
This rectangular 80 gallon auxiliary fuel tank is designed for heavy-duty applications. It emphasizes US-made construction and large capacity in a compact footprint. Best for: robust trucks and trailers needing a durable, fixed transfer tank for extended range. Limitation: basic feature notes; lacks explicit compatibility details beyond standard fuel transfer use.
RDS MFG INC RDS 71793 80 Gallon Rectangular Tank
This 80 gallon rectangular tank supports multiple fuels and urges gravity feed for diesel. Best for: operators who need a versatile transport tank that can carry different fuels with gravity-assisted flow. Limitation: some configurations may require specific mounting hardware and pump setup.
RDS MFG INC 71792 Rectangular 80 Gallon Tank
Aluminum-tanked, 80 gallon capacity with a 50″ x 20″ footprint option, designed for mounting on U.S.-made platforms. Best for: users seeking a durable, lightweight metal tank with clear origin. Limitation: explicit details on flow rate or pump compatibility are not provided in the listing.
MUKETA 80 Gallon Marine Fuel Bladder
This 80 gallon marine bladder uses 2000D TPU for high tensile strength, puncture resistance, and anti-static properties. Best for: sailors and anglers needing flexible, quickly deployable fuel storage with extended range. Limitation: bladder-based tanks may require careful mounting and regular inspection for wear and puncture risk.
DEE ZEE DZ92556B Transfer Tank
Dee Zee offers a non-rusting aluminum transfer tank with a 125 Brite-Tread finish and a radius curve to reduce weld stress. Best for: heavy-duty, corrosion-resistant transfer needs on trailers or trucks. Limitation: exact capacity not stated in the listing; verify before purchase for 80 gallon alignment.
Buying Guide: Key Considerations for 80 Gallon Auxiliary Tanks
What fuel type and compatibility do you need? Some tanks support gasoline, diesel, or aviation fuel; others are designed for gravity flow or pumped transfer. Consider the fuel type you’ll carry and whether a bladder or rigid tank better suits your mounting space and vehicle type.
What is the mounting footprint and installation complexity? Dimensions, mounting points, and weight when full affect fit on trucks, trailers, or boats. Rigid tanks often provide straightforward mounting, while bladders offer flexible placement but require secure anchoring.
How important is corrosion resistance and durability? Aluminum and reinforced plastics resist corrosion in marine or off-road environments. For regular exposure to moisture, choose materials with rust resistance and protective coatings.
What are the transfer options and pump compatibility? Gravity feed is simple but slower; electric pumps speed up fueling. Confirm the tank’s compatibility with your existing fuel system and pumps.
What maintenance and inspection are required? Bladders need periodic inspection for wear and puncture risk, while rigid tanks require seal and gasket checks and occasional cleaning to prevent contamination.
Frequently Asked Questions
- Q: Can I use an 80 gallon tank for both diesel and gasoline?
- A: Some tanks are multi-fuel compatible, but always verify the manufacturer’s guidelines and the pump compatibility for each fuel type.
- Q: Are 80 gallon tanks legal for all trailer types?
- A: Legal requirements vary by vehicle and jurisdiction; check local regulations and vehicle manufacturer recommendations before installation.
- Q: What’s the advantage of a bladder vs. a rigid tank?
- A: Bladders save space and reduce weight, but require more inspection for wear; rigid tanks offer durability and easier mounting.
- Q: Do these tanks come with installation hardware?
- A: Listings vary; some include mounting hardware, while others require separate accessories. Verify what’s included before purchase.