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Evans Prep Fluid for Waterless Engine Coolant - 5 Litre Bottle

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  • Hygroscopic Engine Flush for All Engines
  • Hygroscopically absorbs water
  • Use after draining water from the cooling system
  • Ensures all residual water is removed from the system
Price £39.95 inc. VAT
Seen it cheaper? We'll Beat/Match Prices

As a special introductory offer, we are offering free UK Mainland shipping on all Evans Coolants (excludes Highlands, Islands & Northern Ireland)

Manufacturer EVANS
Larkspeed Code PREPFLUID5L
Product Information
Delivery & Returns
  • Hygroscopic Engine Flush for All Engines
  • Hygroscopically absorbs water
  • Use after draining water from the cooling system
  • Ensures all residual water is removed from the system

Evans Prep Fluid is a Waterless Engine Flush designed for use with all engine types. It is formulated to hygroscopically absorb water whilst flushing loose dirt and scale from the cooling system prior to filling with Evans Waterless Coolant.

Note: An average modern car has a cooling capacity of around 7 litres, whereas most Classic Cars tend to have a coolant capacity of between 10 and 12 litres (some up to 20 litres!). However please check your coolant capacity before ordering - these are just averages. For a car with a 7 litre coolant capacity, you would need 7 litres of Coolant and 5 litres of Prep Fluid. For a car with a 12 litre coolant capacity, you would require 12 litres of Coolant and 10 litres of Prep Fluid.

The easiest way to order from Larkspeed is via our secure online ordering system. We accept most major credit and debit cards except American Express. We also accept PayPal.

Please ensure that you provide us with a valid telephone number and email address so that we can contact you about your order if necessary. Please also ensure that you fill in your vehicle details so that we know what car you are ordering for.

Once an order has been placed successfully, you will receive an automated response via email. If you do not receive an automated email from our website, this could mean that your payment has not been successful – in if doubt, please contact us on or 0113 264 3231

Location Weight Price
UK Mainland Up to 2kg £5.95
UK Mainland Over 2kg £10

Mainland UK shipping does not cover Highlands and Islands and selected postal areas. The Postal Code areas listed below will in some cases incur extra postage charges.

AB31-38, AB40-56, All BT Postal Codes, All HS Postal Codes, All IM Postal Codes, IV1-28, IV30-32, IV36, IV40-49, IV51-56, IV63, KA27-28, KW1-17, PA20-38, PA41-49, PH4-44, PH49-50, All ZE Postal Codes, All Channel Islands and all Republic of Ireland addresses

For shipments up to 30kg

Location Price
Highlands/Islands/Selected Postal Areas £20
Andorra £55
Austria £45
Belgium £40
Channel Islands £35
Croatia £55
Czech Republic £55
Denmark £55
Estonia £55
Finland £55
France £40
Germany £50
Greece £55
Hungary £55
Ireland £30
Isle of Man £30
Italy £55
Latvia £55
Netherlands £50
Northern Ireland £30
Norway £75
Poland £70
Slovakia (Slovak Republic) £55
Slovenia £55
Spain £55
Sweden £45
Switzerland £65

Telephone Ordering

If you prefer, you can also order via telephone on 0113 264 3231

For customers outside of the UK, please dial +44 113 264 3231

Email Ordering

Customers outside of the UK can email orders to When payment is required, we can email you a secure card payment link or a PayPal invoice.

Worldwide Shipping

We can ship virtually every item on our website to almost every part of the world. However, the website can not calculate shipping for all countries, particularly where we need to ship via Air (generally outside of Europe). If the website is not calculating shipping automatically for you, then please email us for a shipping quote on

Deducting VAT

Please note that we can remove the VAT for all customers outside of the EU, and also for customers within the EU with a valid EU VAT Number.