4 Gallon Gasoline

When your trip takes you deep into remote country, range matters. The RotopaX 4-Gallon Gasoline Fuel Container is the largest and most capable fuel pack in the lineup — built for long-haul overlanders, expedition vehicles, and anyone who needs serious reserve capacity. Made in the USA and tested by real off-roaders, it’s the trusted standard for safe, compliant, and mountable fuel storage.

Each RotopaX container is rotationally molded using a patented three-layer process that gives it even wall thickness and unmatched structural integrity. A built-in vapor barrier layer seals fuel fumes, keeping the pack fully EPA and CARB compliant — legal for sale and use in all 50 states. The rugged UV-stable, high-density polyethylene body resists swelling, cracking, and warping, even after years of sun exposure and trail abuse.

Inside the fill neck, a Flame Mitigation Device (FMD) prevents flashback ignition and “flame jetting,” providing an extra layer of protection during refueling. Reinforced dual handles make it easier to lift, pour, or mount securely — even when the container is full.

Key Features

• 4-Gallon Capacity — the largest RotopaX fuel pack, ideal for extended travel.
• Roto-Molded HDPE Construction — three-layer design with internal vapor barrier.
• EPA & CARB Certified — 50-state compliant for on- and off-road use.
• Flame Mitigation Device — built-in stainless insert for safety under heat or pressure.
• Reinforced Dual Handles — balanced grip for secure carrying and mounting.
• Mount Compatibility — works with Standard, DLX, and LOX Pack Mounts, plus Roll Bar Mount options.
• ECO Spout & Cap Assembly Included — clean, precise pour every time.
• BPA-Free & UV-Stable — resistant to fuel blends, heat, and sun exposure.
• 10-Year Leak-Free Warranty — manufacturer-backed quality guarantee.

Mount to a flat, load-bearing surface such as a bed rack, tailgate, or roof platform. Use a RotopaX Pack Mount (Standard, DLX, or Locking) for a rattle-free fit; tighten the T-handle until fully seated. For tubular surfaces, choose the Roll Bar Mount. To stack multiple containers, use the correct extension matched to your base can — two maximum for stability.

For best longevity, vent daily or when temperature or elevation changes. Keep containers full or empty to reduce vapor pressure. Like all RotopaX gear, the 4-Gallon Pack is built to endure years of real-world vibration, impact, and exposure — gear you can rely on when the trail gets unpredictable.

Made in the USA and engineered for off-road use — this is the benchmark in portable, compliant fuel storage.

Partner item — ships directly from RotopaX.