Every RV trip starts with excitement, but one wrong move at the gas station can quickly turn it into an expensive lesson. From choosing the wrong fuel to overfilling tanks or ignoring maintenance, these mistakes add up fast. Understanding how to fuel safely and efficiently not only saves money but also protects your vehicle from costly repairs that could ruin your next road adventure.
Using The Wrong Fuel Type
Filling an RV with the wrong fuel can cause serious damage. Diesel engines require specific blends, and misfuelling with regular gas may lead to major engine repairs. Pump labels should always be double-checked before filling, especially at mixed stations. Taking an extra moment to verify can save thousands in potential damages and help ensure the RV runs smoothly for the long haul.
Overfilling The Tank
Overfilling might seem harmless, but it can cause leaks and damage your RV’s vapor recovery system. Once the pump clicks, stop immediately to prevent excess fuel from expanding due to heat. Spilled gas can also harm paint and pollute nearby soil. By filling only to capacity, you’ll extend your system’s life and avoid unnecessary environmental and mechanical issues.
Ignoring Tire Pressure Before Fueling
Tire pressure should be checked before every refuel stop. Underinflated tires increase rolling resistance, leading to poor fuel efficiency and potential blowouts. Gas stations often have air pumps, making it easy to address the issue on the go. Properly inflated tires improve mileage, safety, and overall performance, helping save fuel and prevent expensive roadside problems later.
Forgetting To Turn Off The Engine
Keeping the engine running while refueling increases fire risk and violates most safety regulations. Modern RVs may idle quietly, making it easy to forget. Always shut down your engine completely and remove the keys. This simple habit ensures safety for you, your passengers, and everyone around the fuel pump, while reducing unnecessary wear on your vehicle.
Failing To Ground The RV
Static electricity can ignite fuel vapors if an RV isn’t grounded properly. Touching a metal surface before pumping gas helps discharge any static buildup. Some larger RVs have grounding cables that must remain attached during refueling. These precautions take only seconds but can prevent dangerous sparks and protect against devastating damage.
Using Cheap Fuel Additives
It may seem like fuel additives improve performance, but low-quality products often harm the engine instead. Some additives contain chemicals that corrode fuel lines or sensors. Manufacturer-approved products designed for a specific engine type are the safer choice. Spending a little extra on trusted brands ensures cleaner combustion and helps prevent long-term mechanical issues that cost far more to repair.
Ignoring Weight Distribution When Fueling
Uneven weight distribution affects how your RV handles, especially after refueling. When one tank fills faster than another, your vehicle can lean or pull unexpectedly. Always check that water, propane, and fuel tanks are balanced before driving off. Proper load management improves safety, fuel efficiency, and comfort during long trips, preventing suspension and tire strain.
Leaving Without Tightening The Gas Cap
The gas cap should always be double-checked before leaving the station. A loose cap allows fuel vapors to escape, triggers warning lights, and wastes fuel over time. It remains one of the most common oversights RV owners make. Securely tightening it ensures proper pressure in the fuel system and keeps the RV running efficiently with fewer emissions.
Ignoring Fuel Filters
Many RV owners overlook the importance of replacing fuel filters regularly. Dirty filters restrict flow, forcing your engine to work harder and burn more fuel. They can also cause stalling or difficulty starting. Replacing filters at the recommended intervals keeps your engine clean and helps avoid costly repairs caused by contaminated fuel reaching sensitive components.
Blocking Fuel Lanes Too Long
After filling up, it’s tempting to check maps or grab snacks, but lingering at the pump frustrates other drivers. Many stations prohibit idling after fueling. You should pull forward to a parking spot if you need extra time. This courtesy keeps traffic flowing and prevents arguments or fines at busy highway stops popular with RV travelers.
Using The Wrong Payment Card
Some stations charge higher fees for certain cards or preauthorizations that freeze large amounts temporarily. You should know which payment method your card provider recommends for fuel purchases. Mismanaging this can lock funds you need for the trip. Checking card limits and payment settings helps avoid unnecessary delays or embarrassment at the pump.
Forgetting To Track Fuel Mileage
Money can be saved by tracking mileage after every fill-up. Sudden drops in efficiency often signal mechanical issues such as leaks or clogged filters. Keeping a log helps identify problems early before they develop into expensive repairs. Apps and onboard systems make monitoring easy, turning this small habit into long-term savings for frequent travelers.
Parking Too Close To The Pump
Large RVs require more clearance, and parking too close risks hitting curbs, posts, or even the pump. Always approach slowly and leave room for hose movement. Checking mirrors and using a spotter if available helps prevent accidental scrapes. This small precaution prevents costly body damage and ensures smoother refueling at tight gas stations.
Neglecting Generator Fuel Levels
Many RV owners forget that generators share the main fuel tank. Running it too low can starve the generator and create restart issues. Always monitor levels carefully before extended stops. Keeping the tank at least one-quarter full ensures both your RV and generator continue working properly, especially when camping without shore power connections.
Ignoring Diesel Exhaust Fluid Requirements
If your RV runs on diesel, you should maintain proper diesel exhaust fluid (DEF) levels. Running low can cause power loss or even prevent starting. Always refill DEF when topping off fuel, as some stations provide both. Using the correct fluid for your model helps reduce emissions and keeps your engine compliant with environmental regulations.
Using Unverified Truck Stops
Not all truck stops accommodate RVs safely. Some have uneven surfaces, low canopies, or restricted access points. Researching ahead ensures your vehicle fits comfortably and avoids scraping or tire damage. Many apps list RV-friendly stations, helping you save time and prevent accidents while navigating busy or industrial fuel locations.
Overlooking Fuel Quality At Remote Stops
In rural areas, older stations may sell lower-quality fuel that can contain debris or water. You should be cautious about where you refuel on long drives. Using reliable chains or newer stations helps protect your engine. Carrying a spare fuel filter adds peace of mind if you encounter unexpected contamination on remote routes.
Failing To Clean Up Spills
Fuel spills are not only dangerous but also illegal in many states. If you accidentally spill, notify staff immediately and avoid starting your engine until it’s safe. Keeping a small absorbent kit onboard helps manage minor leaks quickly. Acting responsibly prevents accidents, fines, and lasting damage to the environment and station property.
Forgetting Loyalty Rewards Programs
Many RV owners miss out on savings by skipping loyalty programs. Most major fuel chains offer discounts, points, or free amenities for members. Signing up takes minutes and can save hundreds over the year. Consistent use at the same chain often provides additional perks like free dumping stations or discounted propane refills during frequent travel.
Ignoring Roof Clearance At Canopy Pumps
Tall RVs risk striking overhangs when entering gas stations with low clearances. You should always know your vehicle’s height and read posted signs carefully. Damaging the roof or air conditioner can cost thousands in repairs. Slowing down and choosing open lanes prevents accidents and keeps your RV safe while fueling comfortably.
