Pump your brakes!

Brake fluid is arguably one of the most important fluids in your vehicle – Opie Oils stock a huge range of quality products that are designed to give optimum performance and stopping capabililties. With offerings from brands such as Motul, Castrol, Pentosin and Millers to name a few, there is no doubt that Opies will have the perfect fluid for the task at hand.



Below is a link to our categories of brake fluids types, simply click on the DOT of your choice for the full range including prices, specifications and application.

You can find the full range HERE.

For the vast majority of vehicles, a single fluid – brake fluid – is used in both the clutch and brake reservoirs. Check the cap of your clutch fluid reservoir – it should indicate if you need a special fluid.

Dot 3 / dot 4 / dot 5.1 brake fluid – all available here for purchase online, plus “super” dot 4 – not an official brake fluid rating, but used on track / race / competition brake fluid.

Brake fluid should be changed every 1 or 2 years. Over time, moisture diffuses into the fluid through brake hoses and rubber seals, increasing the water content. If your brake fluid is low, you probably have a problem such as a leak. Leaks and excessive moisture in the fluid can both result is a loss of hydraulic pressure and braking ability, so it’s as well to check and change your fluid periodically.

Dot 3 is the most basic fluid generally available. dot 4 is a higher performing fluid with a higher boiling point, whilst dot 5.1 is the most up to date standard – typically a longer life fluid that requires changing less frequently. Super dot 4 fluids have the highest boiling points but are not longlife. dot 5 brake fluid is not to be confused with dot 5.1 – dot 5 is a silicone based fluid which MUST NOT be mixed with dot3, dot4 or dot 5.1 brake fluid

You can find which DOT your vehicle requires, normally in your handbook.

If you need any advice on the correct brake and clutch fluid for your specific set up or level of modification, then please feel free to get in touch – we’re in the office Monday to Friday 8:30 – 5:30 and can be reached on 01209 202 944 and sales@opieoils.co.uk.

Until next time!



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