Fastrax Racing Pure Silicone Diff Oil 8000 cSt RC Car FAST61-8K

Overview

The Fastrax Racing Pure Silicone Diff Oil 8000CST (FAST61-8K) is a premium differential oil specifically formulated for RC car enthusiasts who demand consistency, precision and performance across all racing conditions. Whether you're competing in the UK RC racing circuit or practising at your local track, this professional-grade silicone diff oil has been rigorously tested and developed over 12 months by some of Europe's leading drivers to deliver unmatched performance and tuning flexibility.

Differential oil is a critical component in any RC car setup, affecting how your vehicle handles corners, accelerates through turns and maintains stability during high-speed runs. The viscosity rating of 8000 cSt positions this oil as a medium-to-heavy option, making it ideal for drivers seeking maximum grip and predictable handling characteristics. Unlike standard RC oils, the Fastrax range has been tested in extreme conditions ranging from the intense heat of Spain to the challenging wet weather of the UK, ensuring you get consistent performance no matter what the British weather throws at you or wherever your RC racing ambitions take you.

If you're serious about reaching the winners circle and want to fine-tune your RC car's performance, the Fastrax Racing Pure Silicone Diff Oil is the professional choice. The convenient 50ml bottle with an easy-pour lid means changing your differential oil takes seconds rather than minutes, so you can spend more time driving and less time maintaining your setup. RC car UK enthusiasts and competition drivers trust Fastrax oils to give them the edge they need.

Key Features

• Professional-Grade Silicone Formula — This is not a generic diff oil; it's a premium pure silicone formulation that has been specially developed and tested by Europe's leading RC drivers, ensuring you're using exactly what the pros rely on for competition and serious hobby racing.
• 8000 cSt Viscosity Rating — The 8000 cSt specification places this oil in the medium-to-heavy viscosity range, delivering optimal differential performance for drivers who want increased grip, traction control and predictable handling through corners without sacrificing speed.
• Extreme Condition Testing — This oil has been proven in real-world conditions from the scorching heat of Spanish tracks to the wet, unpredictable weather of the UK, guaranteeing consistent performance whether you're racing in summer sunshine or British rain.
• Unmatched Consistency and Progression — Drivers involved in the development process reported that they had never encountered oils offering such exceptional consistency and progression across the entire range, meaning you get reliable, predictable performance lap after lap.
• Comprehensive Tuning Range — The vast range of Fastrax oil options (available in multiple viscosity ratings) enables you to fine-tune your car's handling characteristics for all conditions, making it easier to dial in the perfect setup for any track or weather.
• Easy-Pour Lid Design — The thoughtfully engineered easy-pour lid makes changing your differential oil quick and mess-free, transforming what could be a tedious maintenance task into a moment's work so you can focus on driving and improving your lap times.
• 50ml Bottle Size — The convenient 50ml bottle provides the right amount of differential oil for most RC cars, offering excellent value and ensuring you're not wasting product or running short mid-season.

Technical Performance

The Fastrax Racing Pure Silicone Diff Oil 8000CST is engineered at a molecular level to provide superior performance in RC car differentials. At 8000 cSt, this oil strikes the perfect balance between providing enough viscosity to ensure traction and grip without being so thick that it creates excessive drag or makes your RC car feel sluggish through turns. The pure silicone base ensures the oil maintains its consistency across temperature variations, so whether you're running your RC car under the hot sun or in cooler British conditions, you'll experience the same predictable performance. The development process, which involved testing in Spain's heat and the UK's variable weather, means this oil has proven its reliability under real-world stress. European professional drivers involved in the testing phase praised the oil's ability to deliver progressive handling characteristics, allowing them to make micro-adjustments to their setups and achieve repeatable, competitive lap times. The engineering focus on consistency means you can confidently make tuning decisions based on the oil's performance, rather than having to account for variables caused by inconsistent products.

What's in the Box

• Fastrax Racing Pure Silicone Diff Oil 8000CST — 50ml bottle with easy-pour lid

Frequently Asked Questions

• What viscosity rating should I choose for my RC car? — The 8000 cSt rating is a medium-to-heavy viscosity option ideal if you want maximum grip, traction and predictable handling through corners. Fastrax offers oils across a range of viscosity ratings, so you can select the one that matches your driving style, track conditions and desired handling characteristics. Thicker oils (higher cSt) provide more grip but can feel slower; thinner oils feel faster but reduce traction.
• Is Fastrax diff oil suitable for beginners? — Yes, absolutely. While professional drivers love Fastrax oils for their consistency and tuning range, beginners will also benefit from the reliable, predictable performance. The easy-pour lid makes maintenance simple, and the professional-grade formula means you're starting with a quality product rather than learning with inferior oils that might mask your actual driving progress.
• Why should I use silicone-based diff oil instead of standard oil? — Silicone-based oils maintain consistent viscosity across temperature changes much better than mineral oils, which means your RC car will handle the same whether you're racing in summer heat or cooler conditions. The pure silicone formula in Fastrax oils has been specifically developed to provide this consistency, which is why professional drivers prefer it.
• How often should I change my RC car's differential oil? — This depends on how frequently you run your car and in what conditions. As a general rule, inspect your differential after every few running sessions and change the oil if it looks dirty or contaminated. The convenient 50ml size makes it easy to keep a bottle on hand so you can refresh your differential whenever needed.
• What makes Fastrax oils different from other RC oils? — The Fastrax range stands out because of its development process with Europe's leading drivers and its proven performance across extreme conditions from Spanish heat to UK weather. Drivers involved in testing reported never finding oils with such exceptional consistency and progression. The comprehensive range of viscosity options also gives you more tuning flexibility than many competitors.
• Can I use this oil in other RC vehicles? — This oil is formulated specifically for RC car differentials. While it could theoretically be used in other RC applications, it's optimised for diff use and you should check your vehicle's manual or manufacturer recommendations before using it elsewhere.

Why Buy from RC Model Shop?

RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the Fastrax Racing Pure Silicone Diff Oil 8000CST FAST61-8K today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.