RVing

The Importance of Your Motorhome’s Fuel Filter

fuel pump

Your motorhome is different than a towable RV in that it has an engine and drives like any other vehicle. That means that the RV has just as much regular vehicle maintenance like any other car out there on the road.

Actually, it has more because it’s also an RV and has all of the things that come with that. Don’t let that worry you though. If you have a towable RV you still have to maintain a tow vehicle, so they really even out.

With all that said, you need to think of your motorhome like a vehicle and that means doing the proper maintenance like changing the oil and the filters regularly. One of the filters you need to think about is your RV’s fuel filter. Here’s a closer look at this important piece of equipment.

What Does the Motorhome’s Fuel Filter Do?

fuel pump
Image by Gab Pili from Unsplash

The fuel filter has a very important job. It keeps the fuel free of dirt or debris that can make its way into the fuel system. This filter keeps the engine working well and ensures you get the best mileage and the most amount of miles out of your engine. 

It also helps to keep your engine running at full power. Dirt and other grime that makes its way through the fuel system can dramatically decrease power and efficiency. Your fuel filter helps keep that bad stuff out.

How to Take Care of Your Fuel Filter

motorhome fuel filter
Image from Gander

As you can imagine, a fuel filter—like everything else on a vehicle—has a limited lifespan. A plugged up fuel filter isn’t going to work as well as a new one, so you need to make sure you take care of it.

Consider Fuel Additives

I know that some people don’t like fuel additives, calling them snake oil and other things, but putting in a fuel stabilizer into your fuel is important, especially for an RV.

A fuel stabilizer or fuel additive is important for an RV because unlike our cars, motorhomes usually aren’t driven every day. Even two weeks of sitting can be enough for fuel to start to break down to the point where it will gum up your fuel filter and engine.

Most fuel additives will work well in any engine regardless of if it’s a diesel or gas engine. Fuel stabilizers are also an important thing to add when you put your RV away for the winter. Use one like STA-BIL and you’ll keep your RV on the road.

Change It as Recommended

You will also need to occasionally replace your fuel filter. If this isn’t something you want to do yourself, that’s fine. Take your motorhome to an RV service center.

However, you need to make sure you’re taking it there at the right time. When to change your motorhome’s fuel filter will be dictated by your RV’s owner’s manual. Check it. If you don’t want to go by that then you should have it changed every 20,000 and 40,000 miles. 


Does your motorhome need service? If so, reach out to Gander’s service department.

The importance of your motorhome's fuel filter

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