So, you’re new to dirt biking, and you’re out on your own digging up dirt with a new set of wheels. All of a sudden, your bike starts to sputter, the engine starts to overheat, and before you know it, the system shuts off altogether.
Boom, you’ve just had your first experience with oil exhaustion.
If this is your experience, don’t be too hard on yourself. It’s easy to get caught up in the thrill of the ride and forget about the less glamorous, but equally important, side of bike ownership: actually performing maintenance on the thing.
Does Oil Matter in a Bike?
Short answer: Yes, it plays an enormous role.
Long answer: Yessssss! One of the most critical aspects of keeping your dirt bike running smoothly, and one of the most overlooked, is regularly changing the oil and oil filter. Doing so ensures your engine stays healthy, performs at its best, and avoids costly repairs down the track. So, no matter how often you’re going out on the trails, regular oil changes will save you a lot of time and money in the long term.
At Blygo, we are passionate about dirt bikes, Pit Bikes, and motorbikes in general, so we know how important it is to get the right info, especially when you’re first starting out. In this guide, we’ll cover how often you should change your dirt bike oil and filter, what each component does, and the signs that indicate it’s time for maintenance.
What is a Dirt Bike Oil Filter’s Role?
Think of your dirt bike’s oil filter as the true unsung and unthanked hero of your engine’s whole system. Its primary job is to trap dirt, metal particles, and other debris that circulate through the oil as your engine runs, and part of the reason that people don’t think about it is that not noticing these things is the whole point.
Without a functioning oil filter, contaminants can build up in the engine, causing wear and tear on the internal components. Most dirt bike engines are high-revving machines designed to perform under tough conditions. That means the oil filter is constantly working to prevent sludge and grime from building up. Replacing your oil filter at the right intervals keeps your engine clean and extends its lifespan.
If you’re looking for an inner oil filter, Blygo has you covered with the Zongshen ZS 190cc 212cc Engine Pit Pro Trail Dirt Bike Inner Oil Filter or the Zongshen ZS155 155CC 160cc Engine Pit Pro Trail Dirt Bike Inner Oil Filter varieties. While pretty similar, the first is a little smaller (approximately 38mm diameter filter) compared to the second, which is the larger (approximately 44mm diameter filter).
What Does Oil Do in a Dirt Bike?
If oil isn’t just fuel, what exactly does it do? In short, dirt bike oil keeps your engine parts moving smoothly, reduces friction, and prevents overheating. Here’s a breakdown of what oil does:
- Lubrication: Oil coats engine components, reducing friction between moving parts. This prevents metal-on-metal contact, which can cause serious damage.
- Cooling: High-revving engines generate a lot of heat. Oil helps carry heat away from sensitive parts, keeping the engine temperature stable.
- Cleaning: As it circulates, oil picks up dirt, carbon deposits, and other particles. This is where the oil filter comes in to trap contaminants.
- Protection: Oil forms a barrier that prevents corrosion and rust inside the engine.
Regular oil changes ensure that your engine is always protected and running efficiently. Neglecting this can lead to decreased performance or even a complete engine failure.
What Are the Signs That a Dirt Bike is Low in Oil?
Running your dirt bike with low oil is a risky business. Here are some signs that your engine might be running on too little oil:
- Warning Lights or Indicators: Many modern dirt bikes have an oil warning light. If it comes on, don’t ignore it.
- Unusual Engine Noises: Knocking or ticking sounds can indicate that engine parts aren’t getting enough lubrication.
- Overheating: Oil helps with cooling. If the engine is running hotter than usual, it could be low on oil.
- Poor Performance: Hesitation, stalling, or sluggish acceleration can be signs of oil problems.
- Visual Check: You can always check the oil level using the oil dipstick or sight glass. If it’s below the recommended level, top it up immediately.
Ignoring these signs can lead to expensive repairs, so it’s best to check your oil regularly, especially before long rides.
What Signs Suggest I Need to Change an Oil Filter?
Even if your oil level is perfect, your engine may still be running on a clogged filter. Here’s what to watch for:
- Dirty Oil: If the oil looks dark or gritty, it’s probably time for a filter change.
- Reduced Engine Performance: A blocked filter restricts oil flow, making it harder for the engine to perform at its best.
- Unusual Engine Sounds: Just like low oil, a clogged filter can cause knocking, tapping, or unusual vibration.
- Mileage or Time Interval: Many manufacturers recommend changing the oil filter every second oil change, but this can vary depending on your bike and riding conditions.
Replacing the oil filter is relatively inexpensive compared to repairing engine damage caused by contaminated oil.
Can a Dirt Bike Still Operate With Low Oil?
Technically, yes, a dirt bike can operate with low oil, but it’s a dangerous game. Running on insufficient oil increases friction, heat, and wear on engine parts, which can lead to catastrophic failure. Even short rides on low oil can cause damage that requires a full engine rebuild. Here’s a quick reality check: the engine is the heart of your dirt bike. Skimping on oil maintenance is like ignoring heart health. You might get away with it for a short period, but the long-term consequences are severe and costly.
How Often Should You Change Oil and Oil Filters?
So, how often should you actually change the oil and filter? While every bike is a little different, here are some general guidelines for off-road dirt bikes:
- 2-Stroke Engines: Every 10-15 hours of riding, or roughly every 3-4 rides, depending on intensity.
- 4-Stroke Engines: Every 15-25 hours of riding, or roughly every 5-6 rides.
Oil filters should typically be changed at least once a season or every second oil change. Heavy off-road use, muddy conditions, or high temperatures may require more frequent maintenance. Always consult your bike’s owner manual for manufacturer recommendations. And remember, it’s better to change oil and filter too often than too late.
Tips for Proper Oil and Filter Maintenance
- Use the Right Oil: Follow the manufacturer’s specifications for type and viscosity.
- Check Levels Regularly: Before every ride, make a habit of checking oil levels.
- Keep It Clean: Avoid dirt and debris from entering the oil when topping up or changing oil.
- Track Hours, Not Just Dates: Heavy riding may require more frequent changes than just a calendar schedule.
- Dispose Responsibly: Old oil and filters should be recycled properly. Many local garages or recycling centres accept them.
Need a Replacement? Blygo Has You Covered
Proper oil and filter maintenance might not be the most exciting part of dirt biking, but it’s crucial for keeping your engine healthy and your rides trouble-free. By knowing when to check and change your oil and filter, recognising warning signs, and sticking to a regular schedule, you’ll extend the life of your bike and enjoy smoother, more reliable rides.
Need more advice for new riders? Explore the Blygo bike blog for more information on parts, common issues, and types of motorcycles. Alternatively, if you have a specific question about motorbike parts, speak with our team today, and we’ll do our best to guide you.


