Report · Updated October 2026
RV fuel theft happens most often where coaches sit unattended — storage lots, campgrounds, rural property and overnight parking — and it is made easy by one factory design choice: most gas Class A, Class C and Super C motorhomes ship with the fuel cap fully exposed and no locking door. This report collects real, documented cases and a practical prevention checklist. It contains no invented statistics.
Chad V., verified buyer — 2010 Ford E-350 Class C
His locking gas cap was picked while the coach sat in a locked, gated storage facility. There were no marks on the cap, only small scrapes around the keyhole. He found out when the low-fuel light came on.
A storage gate does not protect each RV’s filler, and many locking caps use small, simple locks.
Read moreMargaret K., STEM Quest — verified buyer
Three months into owning a new STEM mobile learning lab, all of the fuel was stolen from the tank in a single night.
Specialty vehicles parked overnight are the same easy target as motorhomes. STEM Quest now uses The RV Fuel Vault.
Read moreMichlig Energy advisory, September 23, 2026 (reported by Regional Media News)
A regional fuel supplier warned rural customers about a surge in fuel theft, citing high fuel costs, and urged them to lock tanks, add cameras and lighting, and track usage closely.
The same conditions apply to RVs stored on rural property, at campgrounds or in storage yards.
Read moreStandard gas motorhomes on the Ford E-350/E-450 and F53/Workhorse chassis, and Super C coaches on the Ford F-550/F-600, Ram 5500 and Freightliner S2RV, commonly leave the factory with an exposed fuel cap and no locking fuel door. Anyone can open it by hand to siphon fuel or drop water, sugar or debris into the tank.
Stored coaches are often parked with full tanks for months. A storage gate keeps people out of the lot, but it does nothing for each RV’s filler once someone is inside. Toy-hauler travel trailers and 5th Wheelers with an onboard fuel station have the same problem: the factory filler has no lock.
Estimate, for context only: a 55-gallon tank at $4.00 per gallon holds about $220 of fuel, before any cost from contamination or a damaged fuel system. Your figures will depend on tank size and local prices.
There is no official national count of RV fuel theft. What is documented is a steady stream of owner reports from storage lots, campgrounds and overnight parking, and fuel suppliers warning customers about rising theft when fuel prices are high. Most motorhomes leave the factory with an exposed fuel cap, which makes them an easy target.
Class C gas coaches on the Ford E-350/E-450, Class A gas coaches on the Ford F53/Workhorse, and Super C coaches on the Ford F-550/F-600, Ram 5500 and Freightliner S2RV commonly have an exposed factory fuel cap with no locking door. Toy-hauler travel trailers and 5th Wheelers with an onboard fuel station also ship with a non-locking filler.
It helps against casual tampering, but locking caps can be picked or pried. One RV Fuel Vault customer had his locking cap picked inside a locked storage lot with no visible damage. A keyed locking door with anti-tamper screws over the cap is a stronger barrier.
It depends on the policy and deductible, and many small fuel losses fall below the deductible. See our article on whether RV insurance covers stolen fuel, and check your own policy.
Cover the exposed factory cap with a keyed, bolt-on locking fuel door such as The RV Fuel Vault. It installs in 8–15 minutes with hand tools, leaves the factory cap in place, and is backed by a Limited Lifetime Warranty and the $500 No-Siphon Promise.
Journalists and RV clubs may cite this report with a link to thervfuelvault.com/rv-fuel-theft-report. Press assets are in the media kit.
