Liqui Moly Motorbike 4T SAE 15W-50 Street Motorcycle Oil — 4L Fully Synthetic, Wear Protection

Designed for year-round use in everyday riding and more demanding conditions, this 4-liter pack delivers a blend of selected base oils and advanced additives that prioritize engine cleanliness, wear protection and stable friction behavior. It’s compatible with wet and dry clutch systems and meets key industry specifications so you can fit older Japanese models as well as many modern machines that accept this viscosity.

How does this oil protect engines during daily riding and high-load situations?

The formulation emphasizes wear protection and shear stability so crucial engine bearings and components remain safeguarded whether you’re commuting or pushing the bike at higher revs. Additives help maintain a durable lubricating film under pressure, reducing metal-to-metal contact and smoothing mechanical operation.

• High shear and ageing stability to limit viscosity loss over time
• Optimized additive package for reduced wear and consistent oil pressure
• Good film strength for heavy load and high-temperature operation

Will this oil work with wet clutches and catalytic converters?

Yes — the Motorbike 4T 15W-50 Street is formulated to be compatible with wet clutches, delivering predictable friction characteristics so shifts remain crisp and engagement steady. It is also tested for compatibility with catalytic converters, helping to avoid deposits that can impair exhaust systems.

• Suitable for use with and without wet clutches for smooth power transfer
• Tested and approved for catalytic converter compatibility
• Maintains engine cleanliness to reduce residue build-up in exhaust components

Which bikes and riding conditions are best suited for this 15W-50 oil?

This viscosity is commonly recommended for older Japanese four-stroke motorcycles from the 1990s and for modern bikes that call for a thicker SAE grade. It covers a wide range of applications: street bikes, scooters, quads, dirt models and even racing machines when the spec calls for 15W-50 performance.

• Air-cooled and water-cooled four-stroke engines
• Street, dirt, racing motorcycles, quads and scooters
• Appropriate for machines requiring API SL and JASO MA2 level oils

What technical benefits and approvals does the oil provide?

Liqui Moly’s Motorbike 4T Street combines a high-quality base oil mix with performance additives to deliver low oil consumption, good engine cleanliness and robust lubrication across operating ranges. It carries manufacturer-relevant specifications so it can meet workshop and service requirements.

• Optimal lubrication and measurable wear protection
• Low oil consumption thanks to high shear stability
• Specifications: API SL; JASO MA2 — suitable for many OEM requirements

Who is this for? Riders who need a dependable, fully synthetic 15W-50 engine oil—especially owners of older Japanese machines, riders using bikes with wet clutches, or anyone seeking a versatile oil that performs in everyday commuting and more demanding conditions. If you want a 4-liter supply that balances protection, cleanliness and friction stability across a broad range of motorcycles, this formulation is a practical choice.