Can Someone Siphon Gas From Your Motorhome? (Yes — Here's How to Stop It)
Can Someone Siphon Gas From Your Motorhome?
Yes, and it's easier than you think. Most motorhomes on Ford, Ram, and Workhorse chassis have completely exposed fuel caps with minimal or no anti-siphon protection. A thief with a length of hose and a gas can needs less than 10 minutes to drain 20–50 gallons from your tank — that's $100–$250 in fuel, gone while you sleep.
How Fuel Siphoning Works on RVs
- Unscrew the exposed fuel cap — no lock, no barrier, hand-twists right off
- Insert a siphon hose into the filler neck
- Pump or gravity-feed fuel into portable containers
- Walk away — the whole process takes minutes
Why Locking Gas Caps Aren't Enough
Locking gas caps slow a thief down by about 30–60 seconds. They can be pried off with a pipe wrench, drilled out, or snapped off by brute force.
The Only Real Anti-Siphon Solution for Motorhomes
The RV Fuel Vault doesn't just lock the cap — it covers the entire filler neck behind an armored, tamper-resistant enclosure. There's no filler neck to insert a hose into because the entire area is sealed behind a keyed lock.
- 3/16" fiber-filled polymer construction
- Tamper-resistant keyed cylinder lock
- Covers the cap AND the filler neck completely
- Bolt-on in 8–15 minutes, no modifications
- Fits Ford E-350, E-450, F-550, F-600, F53, Workhorse, Ram 5500
Starting at $99.95. Free shipping. Limited Lifetime Warranty.
Patent Pending · Made in Sarasota, Florida