Liqui Moly Motorbike 4T Synth 5W-40 Street Race full synthetic motorcycle oil — 4 L, high shear stability

Liqui Moly Motorbike 4T Synth 5W-40 Street Race is a full-synthetic 4T engine oil engineered for high-performance motorcycles, delivering robust wear protection, low friction and consistent operation under racing and street conditions.

This oil is formulated from advanced synthetic base stocks and targeted additives that were developed and validated on racetrack engines. It aims to keep racing and performance motorcycle engines clean while minimizing oil consumption and protecting components during intense heat, high loads and frequent gear changes. The 4-liter container (SKU 20076) suits riders who service at home or workshops maintaining sportbikes, naked bikes and performance tourers.

How does this oil protect engines during high-stress riding?

Street Race 5W-40 is engineered for stability under shear and heat, forming a resilient lubricating film that limits metal-to-metal contact. Its additive package reduces wear even in the high‑rpm, high-temperature conditions common to spirited riding and track use.

• High shear stability to preserve viscosity under load
• Additives that build a protective boundary layer on critical parts
• Reduced wear rates demonstrated in racing-derived testing

Will it keep my engine clean and help emissions systems?

The formulation prioritizes engine cleanliness by minimizing deposit formation and sludge. It’s designed to be compatible with catalytic converters, supporting exhaust aftertreatment function where applicable.

• Detergents and dispersants reduce varnish and sludge buildup
• Tested approval for catalytic converter compatibility
• Maintains flow and filtration even after extended use

How does it affect clutch feel and gear shifting?

Liqui Moly’s Street Race oil is tuned to preserve smooth wet-clutch engagement and precise shifting. It balances friction characteristics so multi-plate clutches operate reliably without slip while gearboxes shift cleanly under load.

• Friction modifiers calibrated for consistent clutch bite
• Low internal friction for effortless gear changes
• Stable performance across a wide temperature range

What practical benefits does the 4-liter size offer for riders and workshops?

A 4 L pack provides convenience for full oil changes on most bikes and reduces the need to purchase multiple small bottles. It’s economical for frequent maintainers, small shops or groups who service multiple motorcycles.

• Sufficient volume for most modern sport and touring motorcycle drain capacities
• Cost-effective compared with several smaller bottles
• Easy storage and pour design for spill-minimized refills

Who is this for: Liqui Moly Motorbike 4T Synth 5W-40 Street Race targets riders and mechanics who demand race-proven performance from a daily-use oil. It suits sportbike enthusiasts, track-day riders, and technicians who need a full-synthetic lubricant that combines high thermal and shear stability with engine cleanliness and clutch-friendly friction properties. Avoid if your motorcycle manufacturer prescribes a different viscosity or a non-synthetic specification; otherwise, it’s a strong choice for high-performance four-stroke motorcycles requiring 5W-40 grade protection.