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20W40 4T Semi Synthetic Motorcycle Oil 4-Stroke Engine Lubricant API SN JASO MA2

20W40 4T Semi Synthetic Motorcycle Oil 4-Stroke Engine Lubricant API SN JASO MA2

SKU:3009-5

Regular price £32.99 GBP
Regular price £34.40 GBP Sale price £32.99 GBP
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20W40 4T Semi-Synthetic Motorcycle Oil

Premium Quality 4-Stroke Engine Lubricant

This 4Drive premium 20W40 4T Semi-Synthetic Motorcycle Oil is a high-performance lubricant specifically engineered for modern and classic 4-stroke motorcycle engines. Designed to provide a robust protective film across a wide temperature range, it ensures maximum engine cleanliness and reduces wear in critical components. Its shear-stable formula is particularly effective in integrated gearboxes, providing smooth shifting and reliable protection for air-cooled and liquid-cooled systems alike.

RELIABILITY: Formulated with JASO MA2 technology to prevent clutch slippage and ensure optimal power transfer in wet-clutch systems.

Key Features

  • ✔ Advanced Semi-Synthetic Blend
  • ✔ JASO MA2 Wet-Clutch Compatible
  • ✔ High Thermal & Oxidation Stability
  • ✔ Superior Anti-Wear Additive Pack
  • ✔ Optimal Gearbox Shear Protection

Technical Specs

Viscosity Grade: SAE 20W-40
API Standard: SN / SM / SL
JASO Standard: MA2 (Backwards Comp. MA)
Viscosity @ 100°C: 14.5 cSt (Typical)
Flash Point: >220°C
Pour Point: -25°C

Compatibility / Fitment Guide

Manufacturer Common Models / Systems Notes
Yamaha Virago, V-Star, XVS Models Ideal for air-cooled V-Twin engines.
Victory Victory Cruisers & Touring Direct alternative to 20W40 semi-syn kits.
Japanese OE Honda, Suzuki, Kawasaki Where 20W-40 viscosity is specified.
General 4T Air-cooled single and multi-cylinder Suitable for warm climate operation.

OEM Cross Reference

Yamalube 20W-40 4-Stroke Performance
Victory Semi-Synthetic 20W-40
Castrol Activ 4T / Actevo 20W-40
Mobil Super Moto 20W-40

Questions & Answers

Is this oil safe for motorcycles with a wet clutch?

Yes. This oil meets the JASO MA2 specification, which is the highest standard for wet-clutch compatibility, ensuring smooth engagement and preventing slippage.

How do I know if it is compatible?

We recommend checking your owner's manual for the recommended viscosity. If your manual specifies 20W-40 and requires an API SL/SM/SN or JASO MA/MA2 standard, this oil is a guaranteed fit.

Can I use this in an air-cooled engine?

Absolutely. The 20W40 grade is specifically popular for air-cooled engines (such as Yamaha Virago or Victory models) as it provides a thicker oil film at high operating temperatures compared to 10W40.

Note: 4Drive lubricants are manufactured to meet or exceed OEM performance requirements. Always consult your vehicle manual for specific oil change intervals.

4drive.co.uk | Premium Automotive & Motorcycle Parts

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Shipping calculated at checkout. Free shipping over £150. Terms apply