Choosing the right oil for your motorcycle, scooter, or moped is the most important step for your engine’s operation. With so many options and features, the choice may seem difficult. This guide will help you find exactly what you need in simple steps.

Step 1: Choose Based on Engine Type

Before you look at anything else, you need to choose the oil that matches your engine and vehicle type:

• 4T Oil (Four-stroke engines): Applies to the vast majority of modern motorcycles, scooters, and mopeds.
• 2T Oil (Two-stroke engines): For older bikes, certain purebred enduros, or small 50cc scooters. These oils burn together with the fuel.
• Gear Oils: Special, thicker lubricants intended exclusively for the gearbox (transmission) or differential (e.g., in large scooters or motorcycles with a shaft drive).
• Suspension Oils: Specialized fluids used exclusively inside the forks (suspension) of the motorcycle for proper vibration damping.

Step 2: Understanding Viscosity

Viscosity shows how "thin" or "thick" an oil is. These numbers (e.g., 10W-40) follow the SAE standard:

• The first number (with the W - Winter) indicates fluidity at low temperatures (cold start in the morning).
• The second number shows the oil’s stability at high engine temperatures.

The most popular viscosities in the Greek market:

• 10W-40: The most common and "all-purpose" oil for most modern mopeds, scooters, and motorcycles (ideal for everyday use).
• 15W-50 & 20W-50: Thicker oils, ideal for the Greek summer, for older air-cooled engines, or motorcycles that tend to "burn" a little oil.
• 10W-50 & 10W-60: Premium choices for high-performance engines that run at very high revs and temperatures.
• 5W-40 & 10W-30: Thinner oils, recommended by many modern manufacturers (e.g., Honda for its new scooters) to reduce fuel consumption.
• 80W-90: Typical viscosity almost exclusively for gear oils for scooter transmissions or gearboxes.

Step 3: Choosing the Type of Lubricant

Depending on its composition and processing, oil is divided into three categories:

• Synthetic: The top oils on the market. They offer maximum possible protection, withstand extreme temperatures, and maintain their properties for more kilometers. Ideal for modern, large, or sport motorcycles.
• Semi-synthetic: An excellent value for money solution. They combine the stability of synthetics with the lower cost of mineral oils. Ideal for everyday scooters and mopeds.
• Mineral Oils: Natural oils with minimal processing. Mainly used in classic/old motorcycles, some large low-revving engines (e.g., cruisers), or during the break-in period of a new engine.

Step 4: International Specifications (What to Look For)

If you open your manufacturer’s manual, you’ll see it requires certain specific specifications. The three most important are:

➡ JASO (Japanese Automotive Standards Organization)

The most critical specification for two-wheelers! It distinguishes oils based on whether the vehicle has a wet clutch or not.

• JASO MA / MA2: Suitable for motorcycles and mopeds with a wet clutch (where the engine oil also lubricates the gearbox). Prevents clutch slippage.
• JASO MB: Suitable exclusively for Scooters. Scooters have a dry (centrifugal) clutch, so the oil only lubricates the engine and contains special additives to reduce friction. Attention: Do not use MB oil in a motorcycle with gears!

➡ API (American Petroleum Institute)

Indicates the quality level of oil for four-stroke engines. It consists of the letter S (Spark Ignition) followed by another letter (e.g., API SN, SM, SL). The further the second letter is in the alphabet, the more modern and higher quality the oil.

➡ ISO (International Organization for Standardization)

Mainly concerns two-stroke (2T) engines. You’ll see specifications like ISO-L-EGD, which certify how cleanly the oil burns and how much smoke it produces.

Step 5: Capacity (How Much Oil Do You Need?)

Before you buy, check the amount your engine holds (with or without filter change):

• 1 lt: The classic package. Most mopeds and small scooters need less than or exactly 1 liter.
• 4 lt / 5 lt and above: Economical packages (frequent buying), ideal for large motorcycles that require 2.5 to 4 liters per change, or for riders who want to stock up oil for future services.

Premium Brands

Brand choice often comes down to rider trust, but some of the top names are:

• Motul: Perhaps the most recognizable brand in Greece (with the legendary 5100 and 7100 series).
• Castrol: Quality guaranteed, with a huge racing tradition (Power 1 series).
• Liqui Moly & Amsoil: Premium manufacturers with an emphasis on top additives and ultimate protection.
• Ipone: Specialized French brand exclusively for two-wheelers, very popular for rollers and mopeds.
• Bel-Ray & Motorex: Brands with great expertise in off-road (Enduro/Motocross) as well as street motorcycles.
• Cyclon: An excellent and reliable Greek/value-for-money choice for everyday use.

Smart Tip: Before you click "Add to Cart," always consult the manual of your motorcycle for the exact viscosity and JASO/API specification required.