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Millers Oils CFS 5w-40 Competition Fully Synthetic Engine Oil

Millers Oils CFS 5w-40 Competition Fully Synthetic Engine Oil

Millers CFS 5w-40 full synth - 1 Litre

1 Litre


Millers CFS 5w-40 full synth - 5 Litres

5 Litres


Millers CFS 5w-40 full synth - 20 Litre Drum

20 Litre Drum


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  • Description
  • Benefits
  • Specifications
  • Shipping Explained

Millers Oils CFS 5w-40 Competition Fully Synthetic Engine Oil

CFS 5w40 is suitable for fast road, race, rally, sprints and hill climbs. It is also suited to engines with hydraulic tappets such as the Ford Zetec. The competition full synthetic engine oil is formulated with 100% synthetic base fluids, including a synergistic blend of three esters combined with the latest additive technology for maximum performance. The ultra low friction, nano technology additives successfully proven in motorcycles with wet clutches.     

Use as received for competition or modified engines where maximum power release is the preferred criteria. Formulated for high revving engines used in circuit racing or for larger engines for short duration i.e. hill climbs and sprints.

Miller Oils CFS 5w-40 is also known as:
  • Millers CFS 5w-40 engine oil
  • Millers CFS 5w40 engine oil
  • Millers 5w-40 competition oil
  • Millers 5w40 competition oil
  • Millers Motorsport 5w-40 motorsport engine oil

PDF Downloads:

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  • Provides up to a 26% reduction in friction plus a reduction in wear compared to a standard engine oil
  • Fully synthetic oils provide many outstanding performance benefits over conventional mineral oil.
  • By utilising both polyalphaolefins (PAO) and ester synthetics specially selected to minimise the amount of polymer used, the lubricant film provided is more resistant to ‘shear’ and viscosity loss in highly stress areas.
  • Load carrying capacity many times that of mineral oil.
  • High film strength for ultimate protection.
  • Outstanding cold flow properties for reduced wear at start up.
  • Excellent thermal stability and oxidation resistance.
  • The synergistic blend of three esters gives improved lubricity, reducing friction and enhancing the oils performance.
  • CFS 5w40 provides the optimum balance between hydrodynamic and boundary lubrication and the power absorbed through pumping losses to ensure maximum power release.


  • Performance Profile
    • Manufactured to far exceed the requirements of API SL/CF and ACEA A3/B4
    • Ideal for fast road or track day use, especially in engines where a 5w30 is normally specified
    • Suitable for operating at 125oC with peak temperatures up to 150oC


SHIPPING IS FREE* for orders of £60 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 £4.99 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: Millers Oils
Oil Type: Race / Competition Synthetic

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