Castrol Dot 4 Brake Fluid
Maintains braking effiency for longer
DetailsBest Seller
in Motorcycle Oil & Lubricants£11.48
RRP £12.24
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Verified Customer Reviews for Castrol Dot 4 Brake Fluid
Our customers say…
Customers on the whole praised the quality and effectiveness of the brake fluid, mentioning its good value and reliability. Many found 500ml sufficient for their needs, while others noted the downside of leftover fluid given its hygroscopic nature. Some reported minor issues with pouring, recommending the use of a funnel or smaller openings. Trusted brands like Castrol received high marks, and the fluid improved braking performance notably.
AI-generated from the text of our verified customer reviews
Helpful?
Quick delivery as described.
07 Oct 2025 by Peter
Spot on
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Castrol Dot4
09 Apr 2024 by Anonymous
Superb service from sbs, ordered it and had it next day. Seems a good quality fluid and definitely better than the mucky old stuff that was in my bike!
Just need some sun now to get out and use the brakes
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Braking Good
04 Apr 2024 by Mark
Road or track, it never fails to slow me down. That, and my lack of talent.
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Brake fluid
26 Sep 2023 by Mitchell A
You really cannot go wrong with castrol for any type of fluid be it engine oil or brake fluid along with sportsbikeshop as its retailer never had an issue with them, great packaging, great delivery and great website
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Best Price and quality brand
10 Dec 2022 by Anonymous
Used this a lot servicing my companies vehicles, trusted product and correct price. Recomended.
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Quality brake fluid.
21 Nov 2022 by Martyn W
Excellent product. Very quick delivery. Next time I will buy it in smaller containers though. Too much for one bike, even doing the hydraulic clutch as well as brakes.
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Very good
21 Oct 2021 by Tilly
Very good. Unfortunately packaging doesn't spell out that it is synthetic, but downloadable spec sheet does.
So it's good.
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Awesome fast delivery
20 Jul 2020 by Tim H
Great product with fast delivery. Thank-you!
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Best brake fluid I have used
10 Jul 2020 by Lee D
Great stuff, good quality from a name I totally trust. Highly recommended
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Brake fluid
25 Jun 2020 by Darren W
Better than far more expensive fluid. Used it for years. Brilliant stuff.
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Brake fluid
11 Jun 2020 by Anonymous
Great fluid and great quality. Expect nothing less from Castrol
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Recommended from a friend
31 May 2020 by Anonymous
Decent brake fluid, costs pennies and can make night and day difference to the feel of the brakes. Delivered in quick fashion by the boys and girls at sbs as usual!
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Break for cake !
15 Apr 2020 by David C
Top quality brake fluid... now I can stop on a six pence
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CASTROL DOT 4
09 Apr 2020 by Derek D
Just what the Doctor ordered for annual brake service
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Great brake fluid
01 Oct 2019 by Jan B
Works beautifully :)
p.s. if you don't have a funnel then don't remove the entire seal from the bottle, just stab a small hole through it with a pen or a toothpick, it helps prevent spills and overfilling ;)
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Trusted brand at the right price
29 Aug 2019 by Richard C
I always try and buy trusted big name brands when choosing items such as brake pads and fluids. Never had an issue with any Castrol product so will keep using!
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Quality product
10 Jun 2019 by Anonymous
Good brake fluid from a quality brand
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Funnel needed
17 Apr 2019 by Bradley F
Great stuff but grab yourself a little funnel to make sure you get an easy fill up.
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