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RED LINE 85 PLUS Diesel Enhancer

RED LINE 85 PLUS Diesel Enhancer


RED LINE 85PLUS Diesel Enhance - 355ml Bottle

355ml Bottle


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  • Description
  • Benefits
  • Shipping Explained

RED LINE 85 PLUS Diesel Enhancer

RED LINE 85 PLUS is designed to improve fuel combustion and prolong the life of the fuel system.

Red Line 85 Plus contains powerful thermally-stable detergents which clean fuel injectors and the compression ring area which can become filled with partially-burned combustion products. Lubricity additives lubricate fuel pumps and injectors and leave a coating in the upper cylinder, reducing friction at the critical point where the rings change direction - providing increased power.

A cetane booster is incorporated which will improve coldweather starting and reduce knocking and smoke.

Please note that we are unable to send this product or any other fuel cetane booster to destinations outside the UK.

Dosage: 1 bottle will treat 25 US gallons (94.6 Litres) for a quick blast, or for regular / antiwear use 1 bottle can treat 100 US gallons (378.5 Litres)

PDF Downloads:

Download the Technical PDFDownload the Safety PDF


  • Cleans injectors
  • Cleans high-temperature deposits
  • Lubricates injectors, pumps, and cylinder walls
  • Reduces detonation
  • Improves power and fuel efficiency
  • Helps condition seals in the fuel system
  • Provides easier cold starting
  • Reduces operating costs
  • Stabilizes fuel
  • Prevents rust
  • Disperses water in fuel
  • Winterized version reduces fuel pour-poi


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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