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Elf HTX 850 5W-50 Fully Synthetic Racing Engine Oil

Elf HTX 850 5W-50 Fully Synthetic Racing Engine Oil

Elf HTX 850 5W-50 - 5 Litres

5 Litres


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  • Description
  • Benefits
  • Shipping Explained

Elf HTX 850 5W-50 Fully Synthetic Racing Engine Oil

Elf HTX 850 5W-50 is a fully synthetic, high protection 4-stroke racing motor oil offering optimal engine protection for outstanding reliability and maintained engine performance under prolonged heavy loading. Specially developed for 4-stroke petrol engines working at a wide range of temperatures.

Offers the high protection properties of a 5W-50 grade and performance gains due to its improved formulation and is the reference engine oil for long and medium length events: Rally, Endurance, Rally-Raid.

Suitable for the following applications:
  • 4-stroke naturally-aspirated or turbocharged petrol engines
Perfectly suited for competitions of medium duration:
  • Circuit
  • Rally

PDF Downloads:

Download the Technical PDFDownload the Safety PDF


  • Full synthetic, mineral base content strictly zero to increase in thermal resistance and reliability gain
  • High viscosity is suited to a wide range of functioning temperatures, providing excellent lubrication of engine parts when hot or cold and excellent protection of mechanical moving parts
  • Reversible high shear viscosity (HTHS) means less energy wasted through viscous friction and spontaneous power gain at high and very high speeds
  • Optimised formulation matrix for high de-airing capacity and perfect lubrication of mechanical parts as well as greater compatibility with dry sump type technologies
  • Addition of specific frictional modifiers to provide maximum performance and maintain excellent lubrication at high and very high speeds
  • Detergency additive cleans and keeps clean all shells, pistons, segments and maintains initial engine power perfectly
  • Anti-wear additive allows adsorption on metal areas subject to very high pressure like tappets, cams and bearings along with greater engine protection with impeccable reliability
  • Dispersion surfactant for carbonaceous matter kept in suspension and reduces clogging of filters


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: Elf
Oil Type: Race / Competition Synthetic

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