Answer: When choosing outboard motor gas cans, look for portable, durable tanks with secure lids, clean fuel delivery, and compatibility with your boat’s fittings. This guide highlights five top options suited for anglers, cruisers, and casual boaters who need reliable on-water refueling. Each product is chosen for portability, fuel integrity, and ease of use. The top picks include compact under-seat tanks and larger capacity units for extended trips.
Summary of selected products
| Product | Capacity | Best For | Key Benefit |
|---|---|---|---|
| Scepter 08669 Rectangular 12 Gallon Low Profile | 12 gal | Long trips on boats with many hours of use | Low-profile for space-saving storage |
| Scepter 10511 Under Seat Portable Fuel Tank | 6 gal | Under-seat storage and quick refuel | Built-in gauge and vented cap |
| VEVOR Boat Fuel Tank 3.17-Gallon | 3.17 gal | Compact for smaller boats | 9.8 ft hose, durable HDPE |
| PeakPursuit 3 Gallon Marine Tank | 3 gal | Lightweight, easy portability | I-shaped ergonomic handle and gauge |
| DEF Portable Boat Fuel Tank 6gal | 6 gal | Durable multi-use tank | Two sealing/venting modes and indicator |
Scepter Rectangular 12 Gallon Low Profile Marine Fuel Tank
The Scepter 08669 is designed for outboard engines with a roomy 12-gallon capacity in a compact form. It features a 2-way vented gas can cap to allow air flow while refueling and to release excess pressure safely. A built-in fuel gauge aids quick level checks, and standard fittings enable straightforward hose connections. Best for: boaters needing longer running time without refueling stops. Limitations: while compatible with diesel and ethanol blends, check local fuel regulations before use in sensitive environments.
Scepter 10511 Under Seat Portable Fuel Tank – 6 Gallon
This 6-gallon tank is built with molded-in feet to keep it off the deck, improving ventilation and stability. It has an EPA/CARB-approved vented cap and a built-in gauge for quick fuel checks. The tank accepts standard 1/4 NPT marine fittings and is compatible with diesel and ethanol-blended fuels. Best for: boats needing under-seat storage with reliable gauges. Caution: ensure proper venting to avoid vapor buildup during refueling.
PeakPursuit Marine Tank, 3 Gallon
PeakPursuit’s 3-gallon tank emphasizes portability with an ergonomic I-shaped handle for easy carrying. It includes a fuel level indicator and an integrated filter to help maintain fuel quality before it reaches the engine. Best for: small boats or as a spare on deck for quick top-offs. Limitation: smaller capacity means more frequent refueling on longer trips.
VEVOR Marine Tank, 6.34-Gallon
This 6.34-gallon portable tank provides a balance between capacity and size. It includes a gauge and a 9.8 ft hose, compatible with many outboard interfaces. Best for: anglers and cruisers who want a larger reserve than 3-gallon tanks without moving to a larger permanent setup. Caution: avoid prolonged sun exposure to prevent aging and expansion.
DEF Portable Boat Fuel Tank, 6gal
DEF’s 6-gallon tank uses high-density polyethylene with anti-aging and corrosion resistance. It offers two sealing/venting cap modes and includes an oil volume indicator to monitor fuel supply. Best for: boaters who want versatile sealing options and clear fuel monitoring. Limitation: ensure compatibility with your engine’s fuel fittings, as some connections require adapters.
Buying Guide: Key Considerations for Outboard Gas Cans
- Capacity vs. boat size: Match tank capacity to boat type and typical trip length. Larger boats may benefit from 6–12 gallon tanks, while smaller vessels can rely on 3 gallon tanks for quick refuels.
- Fittings and hoses: Check hose length and inner diameter compatibility with your outboard motor connectors. Look for tanks with standard marine fittings or included adapters.
- Venting and sealing: Vented caps prevent dangerous vapor buildup; dual sealing options can offer flexibility in various weather and fuel conditions.
- Fuel gauge and monitoring: Built-in gauges or sight windows help prevent running out mid-trip and indicate when a fill is due.
- Durability: HDPE construction with UV stabilization resists aging, impact, and corrosion in saltwater environments.
- Portability: Ergonomic handles and lightweight designs improve on-the-water handling and deployment from docks.
- Storage and placement: Consider tanks with low profiles or under-seat options to maximize deck space and safety.
FAQ
- What capacity should I choose for a typical small boat?
Most boats do well with 3–6 gallons for day trips; larger boats may require 12 gallons for longer runs. - Are these tanks compatible with all outboard engines?
Most are designed for common outboard fittings, but verify hose diameter and connections for your model. - Is a built-in fuel gauge necessary?
While not mandatory, a gauge simplifies planning and reduces the risk of running out mid-journey. - Do these tanks handle ethanol-blended fuels?
Many are designed to tolerate ethanol blends; check product specs for each model. - What maintenance is required for these tanks?
Rinse after use when refueling with dirty water, store away from direct sunlight, and inspect hoses for wear. - Can I use a tank for diesel fuel?
Some tanks are compatible with diesel; confirm compatibility with your engine and local fuel rules.