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Red Line Oils - Red Line 10W40 Motorcycle Oil (10w-40) - ester based

Red Line Oils - Red Line 10W40 Motorcycle Oil (10w-40) - ester based


Red Line 10w40 ester bike oil - 1 US Quart (0.946 litre)

1 US Quart (0.946 litre)


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  • Description
  • Benefits
  • Specifications
  • Shipping Explained

Red Line Oils - Red Line 10W40 Motorcycle Oil (10w-40) - ester based

Red Line 10W40 motorcycle oil is an ester based fully synthetic 10w-40 oil for motorcycles.

The 10w-40 viscosity is designed for the latest-high revving four-stroke motocross and ATV engines, as well as for four-cylinder and V-Twin sport bikes that specify a 10w-40 motor oil.

Red Line 10W40 motorcycle oil is also known as:

  • Red Line 10W-40 motorcycle oil
  • Red Line 10W/40 motorcycle oil
  • Redline motorcycle oil (10w40)
  • Redline motorbike oil (10w40)

PDF Downloads:

Download the Technical PDFDownload the Safety PDF


As part of Red Line’s all-new Powersports line, these high performance motorcycle oils are fully-synthetic formulas specifically created for the high demands of the latest high-revving four-strokes motocross bikes and ATVs, Sportbikes, and V-Twins. Available in popular viscosities of 10W40, 20W50, and 20W60, these ester-based products contain the anti-wear chemistry demanded by mechanics and enthusiasts.

The levels of zinc and phosphorus blended into these lubricants are among the highest in the industry and combine well with Red Line’s chemistry, designed to seal piston rings for more power, fight fuel dilution, extend drain interval and provide stronger film strength over a range of temperature. This oil also features lower levels of friction modifiers for superior wet clutch operation. Excellent thermal stability, oxidation resistance, cleanliness, and ability to lubricate hot metal make Red Line High Performance Motor Oil a superior lubricant.


  • Recommended for:
    • JASO MA
    • API SJ
    • API SG
    • API SH
  • Also recommended for the clutch / transmission side of the Honda CRF 250F and 450F, including the X models.


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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