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RED LINE High Performance Fully Synthetic Motor Oil 10W-40

RED LINE High Performance Fully Synthetic Motor Oil 10W-40


RED LINE 10w-40 full synthetic - 1 US Quart (0.946 litre)

1 US Quart (0.946 litre)


RED LINE 10w-40 full synthetic - 1 US Gallon (3.78 litres)

1 US Gallon (3.78 litres)


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  • Description
  • Benefits
  • Specifications
  • Shipping Explained

RED LINE High Performance Fully Synthetic Motor Oil 10W-40

RED LINE Fully Synthetic Motor Oil is designed to provide the highest protection, cleanliness and superior drain intervals with the lowest friction for your petrol, diesel, motorcycle or marine engine.

Great for engines with high oil temperatures or high-performance engines that see street/strip or track activity. It is also a popular choice for medium and heavy-duty petrol engines in light pick-up trucks.
Red Line Ester Synthetic 10W-40 features a thicker oil film at operating temperature than a petro-based 20W-50!

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  • Fully synthetic ester formula for passenger cars, light pick-up trucks and performance vehicles
  • Designed to provide the highest protection, efficiency, cleanliness and superior drain intervals
  • Excellent wear protection and friction reduction across a wide range of operating conditions
  • High detergency allows extended drain intervals and provides increased cleanliness
  • Improved fuel economy and ring seal for more power
  • Superior high-temperature stability and oxidation resistance increases lubrication of hot metal compared to other synthetics
  • High natural viscosity index (VI) provides thicker oil film in bearings and cams
  • Less evaporation than other synthetics for improved efficiency and ring seal
  • Blended with polyol ester base stocks that feature natural multi-grade properties, avoiding unnecessary additives that hinder lubricity
  • All products are completely compatible with other conventional and synthetic engine oils


  • ACEA A3 / B3 / B4
  • API SN / SM / SL / CF
  • Ford XO-10W40-QP
  • GM 93165216/93165213
  • BMW 83 21 9 407 782
  • BMW LL-01 FE
  • Nissan KE900-99942
  • Toyota A08880-80826 / 0885 81207
  • PSA B71 2294 / B71 2295


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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Brand: Red Line
Oil Type: Race / Competition Synthetic

We say...

"Don’t see many decent 10w-40 synthetics, nice of Red Lline to help fill that gap."

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