How To Choose the Right Engine Oil for Your Motorcycle

Your motorcycle’s engine determines its longevity. Selecting the best engine oil is crucial for keeping it running smoothly. It plays a critical role in maintaining your bike’s performance and protects its components. With so many options on the market, how do you decide?

Read on to learn how to choose the right engine oil for your motorcycle. Along the way, we’ll discuss the basics of engine oil and factors to consider when choosing.

Understanding Engine Oil Basics

Before you can choose the right oil, it helps to understand key terms and concepts. Here’s what you need to know:

Viscosity Grades

Viscosity refers to how well engine oil moves through the system at different temperatures. You’ll see oils labeled with “10W-40” or “20W-50.” These are viscosity grades defined by the Society of Automotive Engineers (SAE).

The first number (e.g., 10W) indicates how well the oil flows in cold temperatures (W stands for “Winter”). The second number (e.g., 40 or 50) represents how the oil performs when the engine is running hot. For example, a 10W-40 oil is thinner at lower temperatures than a 20W-50 oil, making it suitable for cold weather or engines that require light oil.

Oil Types: Mineral, Semi-Synthetic, and Full Synthetic

Engine oils are classified into three types: mineral, semi-synthetic, and full synthetic. Mineral oil comes from crude oil and is suitable for old or simple engines. While affordable, it requires frequent changes and offers less protection under extreme conditions.

Semi-synthetic oil blends mineral oil with synthetic additives. It offers great performance and protection at a mid-range price. Full synthetic oil supports maximum performance and protection. It’s ideal for high-performance motorcycles or extreme riding conditions but tends to be more expensive than other types.

You should have a clear grasp of which type is best for your motorcycle’s engine before purchasing.

API and JASO Ratings Explained

Motorcycle oils mention API (American Petroleum Institute) or JASO (Japanese Automotive Standards Organization) ratings.

API ratings (e.g., SG, SL, SN) tell you about the quality and performance level of the oil. Higher letters in the alphabet usually mean a more advanced oil (e.g., SN is newer and better than SG).

JASO ratings (e.g., JASO MA2) are specific to motorcycles and indicate how well the oil performs with wet clutches, which are common in bikes.

Look for oils that meet your motorcycle manufacturer’s recommended API and JASO ratings for optimal performance.

Motorcycle Type and Engine Requirements

The type of motorcycle you own determines the type of oil it needs.

Sport Bikes

Sport bikes typically require high-performance synthetic oils that can withstand high RPM and temperatures. These oils support smooth engine operation and provide optimal protection during aggressive riding.

Cruisers

Cruisers benefit from heavy, semi-synthetic, or mineral-based oils since the engines run at relatively low RPM, and drivers tend to cover long distances. These oils offer durability and consistent performance.

Touring Motorcycles

Touring motorcycles usually require oils with a high viscosity to handle the demands of long rides and varying weather conditions. These oils support engine performance and reduce wear over extended periods.

Dirt Bikes

Dirt bikes demand oils that excel in off-road conditions, where engines are exposed to dirt, water, and frequently high RPM. Specialized synthetic oils are ideal to reduce wear in rugged environments.

Scooters

Scooters have smaller, lighter engines than most motorcycles and bikes, so they benefit from low-viscosity oils that enhance fuel efficiency and support smooth operation.

Riding Conditions and Climate

Your usual riding environment plays a big role in your oil selection:

Hot or Cold Climates

Engines operating in hot climates require oils with high viscosity to maintain lubrication and avoid breaking down under extreme heat. If you’re driving in cold climates, use oils designed for low temperatures. They support cold starts and proper flow when temperatures drop.

Wet or Humid Conditions

Wet or humid conditions may necessitate using engine oils with moisture protection to prevent corrosion and maintain optimal engine performance.

Dusty Environments

Dusty environments require engine oils with enhanced filtration and contamination-resistance properties to prevent abrasive particles from damaging the engine.

Variable Weather

Multi-grade oils are ideal for driving in regions with variable weather because they perform well across a wide range of temperatures and conditions.

Best Practices for Choosing Engine Oil

Here are a few tips to help you decide on the right engine oil for your motorcycle:

1. Consult Your Motorcycle’s Manual

Your motorcycle’s manual contains details about the recommended oil type, viscosity grade, and performance ratings. Use this as your baseline.

2. Assess Your Riding Style and Environment

Are you a daily commuter, a weekend adventurer, or a track-day enthusiast? Consider how often and where you ride, as well as the environmental conditions.

3. Read Product Labels and Specifications

Pay attention to key information on oil packaging, such as the viscosity grade (e.g., 10W-30) and certifications (API or JASO). Reputable brands—AMSOIL, Mobil 1, and Castrol—provide clear details on the packaging.

4. Compare Synthetic and Conventional Oil

Decide between synthetic and conventional oil based on your motorcycle’s requirements and your riding habits. Synthetic oil typically offers better protection, improved performance at extreme temperatures, and longer intervals between changes.

When To Seek Professional Help

If you’re not comfortable changing your oil or your bike shows signs of engine trouble, it’s best to visit a motorcycle service center. Additionally, if your bike has an oil leak or a complicated engine design (such as a dry sump system), it’s best to leave the oil change to the professionals.

Why Choose AMSOIL for Your Engine Oil?

AMSOIL offers high-performance synthetic oils that provide excellent protection. Here are other reasons to choose AMSOIL:

• Reduces wear and tear and keeps the engine in peak condition for a long time.

• Optimizes horsepower and efficiency so the engine performs at its best.

• Works reliably in extreme heat and freezing conditions.

• Minimizes deposits and sludge build-up, keeping the engine running smoothly and cleanly over time.

• Meets or exceeds API and JASO standards, making it suitable for a wide range of motorcycle models.

Keep Your Motorcycle Running Smoothly

Choosing the right engine oil for your motorcycle is an investment in your motorcycle’s performance and longevity. By understanding the basics, considering your riding needs, and following recommendations, you can keep your bike in top condition.

Do you need expert advice? 1972oil has everything you need to keep your ride on the road. Our AMSOIL motorcycle oil simplifies maintenance while improving performance. Reach out to our team or visit our online store to explore premium oils for every type of motorcycle.