Can You Use Car Oil On A Dirt Bike?

Oil is the lifeblood of any combustion engine, as it lubricates moving parts and reduces friction. Which oil, on the other hand, is better for 2 and 4 strokes? What kind of oil should you use in certain parts of the bike? Below are some major questions that most dirt bike owners have. We will address each and every one of them in this article.

What Oil Do I Put In My 2-Stroke Dirt Bike?

The older technology is a two-stroke engine with a simple mechanism that requires two different types of oil to operate. Dirt Bike Gearbox Oil is one of them, and it’s utilized to lube your bottom end bearings, clutch, and transmission.

A proper motorcycle oil for wet clutches should be about 80w, which is a measurement of the oil’s viscosity. Avoid using low-cost oils or automobile oil since the viscosity will be different, causing harm to a motocross bike’s high-performance engine       .

A distinct sort of 2 stroke oil is added to the fuel at a set ratio for the top end of the 2 stroke motor. This is the piston, rings, and top end bearings, to act as lubricant that is burned off during combustion. In two-stroke racing motorcycles, typical fuel/oil ratios range from 20:1 to 50:1 and everything in between. These include: 20 parts fuel, 1 part oil = 20 liters of gasoline, 1 liter of oil

Always refer to your owner’s manual for the recommended oil ratio and brand for your specific bike.  When you have excess or less oil in your fuel, it might cause engine damage or seizure!!

What Oil Do I Use In A 4-Stroke Dirt Bike?

Except for the CRF450 and CRF250, most current four-strokes use the same motor oil to lubricate everything from the valves to the cam, piston, crank, clutch, and transmission. This “all-in-one” oil arrangement requires the motor oil to lubricate more than twice as many moving parts as a two-stroke machine’s usual independent premix and gearbox oil.

Four-stroke oil for racing motors has been designed to get the most power out of a light and basic engine housing. A motocross engine has been simplified to the point where it only uses enough oil to get the job done and nothing more. It is critical to have a routine maintenance regimen on a racing machine, which is aided with an hour meter, to guarantee that your engine is safeguarded.

 Dirt Bike Oil Filters are also found on four-stroke machines and should be updated whenever the oil is changed. If you struggle with messing up while changing your bike oil, a helpful tool called Racetech Oil Catcher can help.

How Do I Know When My Dirt Bike Needs Oil?

  1. Gritty or black oil – Oil will start out with a honey brown hue to it, which will darken after a few weeks of use — this is quite natural. When particles begin to mix in with the oil, though, this is a red flag. These particles are frequently pollutants, and seeing them in higher quantities in the oil could indicate that your filter is losing its ability to keep these particles out of the engine.
  2. Engine Noise – Oil lubricates the engine, and without it, the guts will begin to rub and grind against one another. You’ll be able to tell when the engine sounds start to change if you’re familiar with the regular sounds your bike’s engine makes. This is an indication that it’s time to get some more oil into the system.
  3. Check if the Engine Light Is On – This type of signal varies depending on the motorcycle you’re riding, but any engine issue that persists is always worth a quick check to determine whether oil is the problem. It’s often that easy, and you’ll save a lot of time and aggravation by not hunting for more complicated issues.
  4. Dropping Levels – Engines progressively eat up the oil in the engine, which is why it needs to be replaced on a regular basis, but this can happen more quickly than you think. Check engine oil levels on a regular basis, and if a level gets dangerously low, don’t just fill it back up; inspect the consistency and consider replacing the oil totally.

What Is The Difference Between Car Oil And Motorcycle Oil?

Motorcycle oils go through a different refinement procedure than conventional motor oils. They are blended with five times the amount of additives such as anti-wear, anti-scuff, and additives to endure tremendous pressures that a standard motor will never achieve in comparison to your racing engine.

Friction modifiers and emission reducers are common in regular motor oil, which reduce engine wear in your family car but don’t agree with the clutch in a performance engine.

Why Do Some Bikes Have Different Oil Compartments?

Separate the oil: Separating the oil, as Honda does, ensures that the top-end is free of clutch dirt and broken teeth. Furthermore, the heat generated by the combustion side of the engine does not thin the oil designated for your transmission and clutch. Each compartment’s oil has a varied quality and is suited for a unique application.

The disadvantage of having two smaller oil chambers is that it necessitates more frequent oil changes, which can be disastrous when there is a limited quantity of oil to begin with.

Shared oil: Using the same oil throughout the engine, such as the RM-Z, KX-F, KTM, and YZ-F, has the advantage of reducing the risk of the supply running short and reaching critical levels. Overall engine temperatures are reduced as a result of the increased oil flow, and oil changes are not required as frequently.

Can I Use A Car Oil Filter On My Motorcycle?

All engine oil filters, whether for cars or motorbikes, function in the same way. When engine oil goes through them, they all include filtering material that catches dirt and pollutants. This ensure that your engine components continue to run smoothly.

The oil filter can be installed as long as the dimensions and mounting position are correct (despite it being a car or motorcycle). It will filter something, but it won’t be flawless.

Each oil filter has a set of specifications that are appropriate for various engines. The oil filter specifications required by your car or motorcycle are determined by the manufacturer. It’s critical that you do so.

How Do I Get The Right Oil For My Dirt Bike?

Consult your owner’s manual for the easiest approach to choose the right oil for your bike. It will tell you all you need to know about the oil, from the weight to the quantity, as well as which brands to use. It will also show you where the filling/draining points are, as well as where the Dirt Bike Oil Covers are located and how to check the oil level of your unique bike.

If your 4-stroke’s owner’s manual advises 20w-50, don’t use 10w-30 weight oil. 10w-40 is the most popular for dirt bikes. Your owner’s manual will also tell you how to mix your oil and gasoline for 2-stroke motors. You’ll get the best performance, fewer rebuilds, and less exhaust smoke if you follow this and other recommendations on properly jetting your bike.

Why Is Motorcycle Oil So Expensive?

Oil is like anything else in the consumer world; there are pricey ones and cheap ones. The trick is figuring out which ones provide real benefits and which are just expensive promises written on a bottle.

Motorcycle and automobile oil have the same basic oil. The additives that address the variances between motorcycle and vehicle engines account for nearly all of the discrepancies.

Air-cooled motorcycles are common. Almost every car on the road today is liquid-cooled. Air-cooled engines have higher operating temperatures and internal engine part clearances, both of which contribute significantly to oil degradation.

Catalytic converters were first used in automobiles in the mid-1970s. They first appeared on motorcycles over 40 years later. Because they degrade catalysts, several of the previously useful additives in oils have been removed.

Zinc and sulfur were good engine protectants, but they were quite detrimental to the catalysts in a vehicle’s emissions control system.

Is Synthetic Oil Better For Motorcycles?

Synthetic oil is used in the majority of modern dirt bikes. When we are talking about high-performance and high-revving engines, it’s more tolerant, especially in hotter climates. This type of oil has a longer shelf life and does not produce black sludge as a result of oxidation.

Synthetic dirt bike oil is reported to have lower viscosity than conventional dirt bike oil, which lowers internal friction, improves efficiency, and boosts engine performance. The disadvantage is that it is more costly than mineral oil.

Can I Mix Engine Oils?

Short-term harm will not be caused by mixing different engine oils with identical viscosities. However, if the viscosity of the various oils is substantially different, harm may occur over time. The combined oil should be drained as quickly as possible and replaced with the correct oil as directed by the manufacturer.

Is It Bad To Mix Oil Brands?

There are numerous bike oil brands on the market, and the most of them are priced similarly. It’s best to maintain the engine’s oil brand consistent, especially when topping it up.

Experienced riders and engine designers would always recommend using the same brand and type of oil in a given engine. There should only be a need to blend oils in an emergency or when there are no other options. If necessary, mixing multiple oil brands is not a problem.

Oils can be mixed without worry of having a direct negative impact on the engine. It is preferable to keep the oil tank full of oil rather than not adding oil because the same brand is unavailable.


Thank you for staying with us till the end of the article. I hope that you have learnt a lot about owning a dirt bike especially with regards to information about oil. If you wish to learn about other aspects of a dirt bike, please check the other articles posted on this website.

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