Best Jet Ski Auxiliary Fuel Tanks for Extended Water Fun
Answer: If you need extra range for jet skis or small boats, an auxiliary fuel tank offers safer, portable storage and easy refueling on the water. These tanks are best for long days chasing waves, remote launches, or trips where dock refills are scarce. The top picks below balance capacity, portability, and compatibility with ethanol blends and marine fittings. Ideal buyers include recreational riders seeking longer runs, weekend explorers with limited docking options, and boat owners needing a compact under-seat option for extra fuel.
| Product | Capacity | Best For | Key Benefit |
|---|---|---|---|
| Scepter 9 Gallon Portable Marine Gas Can | 9 gal | Longer trips on boats or jet skis | Built-in gauge and vented cap for safe fueling |
| Scepter 6 Gallon Portable Marine Gas Can | 6 gal | Under-seat storage on small craft | Compact, built-in gauge, 2-way vented cap |
| VEVOR Marine Tank, 14.53 Gal | 14.53 gal | Extended cruising on larger boats | Large capacity with visible gauge |
| LAUCO Portable Marine Fuel Tank | 6.34 gal | General motorboats and jetskis | Two-cap vent/seal option and long hose |
| Attwood 6 Gallon Portable Tank | 6 gal | EPA compliant, casual boaters | EPA/CARB compliant with vacuum vent valve |
Scepter 9 Gallon Portable Marine Gas Can
The Scepter 9-gallon tank combines ample capacity with a compact profile, ideal for jet skis and small boats that need longer running time. It features a 2-way vented cap to allow air flow during refueling while automatically releasing pressure, preventing vapor buildup. The built-in fuel gauge and pickup provide quick visibility of fuel levels. It supports diesel and ethanol-blended fuels and accepts standard marine fittings, making it a versatile option for extended trips. Best for: jet ski owners who crave longer outings without frequent refills. Limitation: the 9-gallon size may be bulkier for ultra-compact storage on some jet skis.
Scepter 6 Gallon Portable Marine Gas Can
The 6-gallon design is well-suited for jet skis needing a compact reserve without sacrificing a built-in gauge. The 2-way vented cap ensures safe fueling by regulating air flow and pressure. It accepts standard 1/4 NPT marine fittings and can handle diesel and ethanol blends. Best for: riders who want a space-saving tank under seat or in the bow area. Limitation: smaller capacity means more frequent refills on long runs.
VEVOR Marine Tank, 14.53 Gal
VEVOR’s 14.53-gallon tank offers a high-capacity option for extended water days. It includes a long 9.8-foot hose, a visible gauge, and a two-way vent cap for safe operation. The high-density polyethylene construction resists aging and impact, making it suitable for larger vessels or jet skis that require significant fuel reserves. Best for: jet ski owners planning multi-hour excursions or dock-limited trips. Limitation: larger size requires more storage space and careful placement on smaller craft.
LAUCO Portable Marine Fuel Tank
LAUCO offers a 6.34-gallon capacity with a 9.8-foot hose and a two-cap vent/seal approach. The two-cap design lets you choose sealed or vented operation, providing flexibility for various refueling scenarios. Made from heavy-duty HDPE, it’s built for durability and portable use on jetskis and small boats. Best for: boaters seeking a balance of size and venting control. Limitation: avoid prolonged sunlight exposure to reduce aging and expansion risk.
Attwood 8806LP2 EPA Certified 6 Gallon Tank
Attwood’s 6-gallon tank complies with EPA and CARB regulations, making it a compliant choice for many jurisdictions. It features a cap with a built-in vacuum valve that minimizes the need for manual venting. This makes refueling on the water simpler and safer. Best for: jet ski operators who prioritize regulatory compliance and straightforward use. Limitation: smaller capacity means more frequent topping off during long days on the water.
Buying Guide
Key considerations when choosing a jet ski auxiliary fuel tank:
- Capacity vs. storage: Do you need a compact under-seat option or a high-capacity tank for long trips?
- Vent system: Two-way vented caps reduce vapor buildup; sealed caps reduce spills. Which is safer for your storage location?
- Materials and durability: High-density polyethylene (HDPE) resists aging and impact but monitor exposure to direct sun.
- Hose length and fittings: Longer hoses ease refueling away from the tank; check compatibility with your jet ski fittings and motor.
- Fuel compatibility: Ensure the tank supports your fuel type, including ethanol blends if applicable.
- Regulatory compliance: EPA and CARB compliance matters for certain regions and applications.
FAQ
- Q: What capacity is best for a jet ski? A: It depends on ride length and storage space. The 6–9 gallon range fits most recreational needs, while larger tanks suit longer trips.
- Q: Are vented caps safer for fuel tanks? A: Yes, vented caps reduce pressure buildup, but ensure proper usage to prevent spills.
- Q: Can I use diesel in a marine gas tank? A: Some tanks are listed as compatible with diesel blends; always check the product’s notes for fuel compatibility.
- Q: Do tanks under seats affect balance? A: Placement matters. Compact tanks are easier to fit without significantly altering weight distribution.
- Q: Do all tanks include a fuel gauge? A: Several models feature built-in gauges for quick fuel level checks; confirm before purchasing.
- Q: Are these tanks compliant with EPA/CARB? A: Some models explicitly state EPA and CARB compliance, which is important for regulatory use.