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Silkolene PRO 4 10w-40 XP Ester Full Synthetic 4T Bike Engine Oil

Silkolene PRO 4 10w-40 XP Ester Full Synthetic 4T Bike Engine Oil


Silkolene PRO 4 10w-40 synth - 1 Litre

1 Litre


Silkolene PRO 4 10w-40 synth - 4 Litres (Lube Cube)

4 Litres (Lube Cube)


Silkolene PRO 4 10w-40 synth - 20 Litres (Lube Cube Box)

20 Litres (Lube Cube Box)


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  • Description
  • Benefits
  • Specifications
  • Fitment / Compatibility
  • Shipping Explained

Silkolene PRO 4 10w-40 XP Ester Full Synthetic 4T Bike Engine Oil

Formulated to meet the needs of both air and water-cooled 4-stroke engines, Pro 4 10W-40 XP is the recommended SAE grade for the majority of motorcycle manufacturers.

The SILKOLENE PRO 4 XP range of motorcycle engines oils are designed using XP Technology for high performance On-Road and Off-Road 4 stroke motorcycle engines.

XP Technology uses an innovative highly shear table, low volatility base oil formulation along with stable esters to achieve increased power, provide ultimate engine and transmission protection, reduce oil consumption and improve fuel economy even under race conditions. XP Technology combats engine wear and reduces friction on all critical load surfaces at both high temperature operation and on cold starts.


PDF Downloads:

Download the Technical PDFDownload the Safety PDF


  • 11% Fuel Savings
  • 18% Lower Oil Consumption
  • 3% Improved Power (BHP/Torque)


  • JASO MA2
  • API SM / SN Performance

Fitment / Compatibility:

Silkolene PRO 4 10W-40 meets the handbook recommendations of all major motorcycle manufacturers where a 10w-40 engine oil is called for.


SHIPPING IS FREE* for orders of £75 and over , regardless of the weight of your order.
We've tried to keep all other shipping costs as low as we can.

Carriage starts at just £0.95 (inc VAT) for small items, with our most common courier rate set at £5.99 for orders of 5kg (enough for 5 litres of oil).

  • *Free shipping is available for UK Royal Mail, UPS Access Point™ (click & collect) and standard UK courier services (not express / priority / islands).
  • Courier surcharges mean we are unable to offer free "to the door" courier shipping from us in Cornwall up to Highlands / Grampian in Scotland - and because we send a lot of liquids, not every courier option is available to us. UPS Access Point™ (click & collect) is available as a free shipping option across Scotland, Wales and England, wherever there is a UPS Access Point™ Location.
  • Carriage charges are based on weight - please see our table of carriage costs for full details (although adding an item to your cart and viewing the calculated carriage is often easier!).
  • Priority shipping is also available.

How long will it take to get my order?

We give an estimate of delivery dates as you shop and in your basket. The vast majority of items are held in stock and dispatched from our UK warehouse and we'll do all we can to get your order to you as quickly as possible.

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We say...

"Premium oil from Silkolene; you will see it a lot on track but also ideal for road use."

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Rated Excellent