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Silkolene PRO 4 15w-50 XP Fully Synthetic Ester Bike Engine Oil

Silkolene PRO 4 15w-50 XP Fully Synthetic Ester Bike Engine Oil


Silkolene PRO 4 15w-50 synth - 1 Litre

1 Litre


Silkolene PRO 4 15w-50 synth - 4 Litres (Lube Cube)

4 Litres (Lube Cube)


Silkolene PRO 4 15w-50 synth - 20 Litres (Lube Cube Box)

20 Litres (Lube Cube Box)


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  • Description
  • Specifications
  • Shipping Explained

Silkolene PRO 4 15w-50 XP Fully Synthetic Ester Bike Engine Oil

Electrosyntec uses electrostatic forces to bond low friction molecules to stressed metal surfaces, releasing hidden power and ensuring long-term performance retention and exceptional stay-in-grade characteristics even under race conditions. Ideal for all highly tuned, high output engine transmission units. Race proven to provide exceptional anti-wear and anti-friction performance under all extremes of temperature.

PRO 4 15W-50 is ideal for larger capacity engines (750cc and above) especially in hot conditions. Always consult engine manufacturers handbook for SAE grade recommendations.


PDF Downloads:

Download the Technical PDFDownload the Safety PDF


Recommended for use wherever JASO MA,

API SG, SH & SJ or CCMC G5 are specified.


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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"High spec ester synthetic from Silkolene. Oils like this have helped to give Silkolene a reputable name."

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