Associated Factory Team 20000cSt Silicone Differential Fluid AS5456

Overview

The Associated Silicone Diff Fluid 20000cSt (AS5456) is a premium tuning oil engineered specifically for RC car differentials. Supplied in a 2-ounce bottle and made in the USA exclusively for Team Associated by Lucas Oil Products, this laboratory-tested high-performance blend of premium silicone provides more consistent differential action and exceptional longevity. Whether you're running a competitive off-road RC buggy, short course truck, or casual basher, differential fluid selection is one of the most critical tuning decisions you can make. The AS5456 grade represents a thicker viscosity option designed for drivers who need maximum control and stability, particularly when cornering and managing the transition between left and right tyre rotation.

If you're serious about your RC car performance, understanding differential fluid is essential. Many UK RC enthusiasts overlook this fundamental tuning option, but experienced competitors know that the right diff fluid can dramatically improve handling balance, traction consistency, and overall performance across a wide variety of off-road surfaces. The 20,000cSt viscosity of the AS5456 is specifically formulated to limit diff-out in corners, where left and right tyres naturally want to rotate at different speeds. This thicker silicone formulation helps your differential maintain drive through corner exit, supporting consistent performance whether you're racing competitively or enjoying weekend bashing sessions.

Made in the USA by Lucas Oil Products specifically for Team Associated, this diff oil combines premium silicone chemistry with decades of automotive engineering expertise. The Factory Team designation indicates this is the professional-grade option trusted by Team Associated drivers worldwide. For RC car UK enthusiasts seeking reliable, consistent performance upgrades, the AS5456 is a core tuning essential that belongs in every serious modeller's workshop.

Key Features

• 20,000cSt Silicone Differential Fluid — The viscosity rating of 20,000cSt indicates this is a thick, premium-grade oil that provides maximum control over differential behaviour, making it ideal for drivers who need superior cornering stability and reduced diff-out for more consistent tyre rotation management.
• USA Manufacturing by Lucas Oil Products — Exclusive production for Team Associated by Lucas Oil Products, a recognised leader in premium lubricant formulation, ensures consistent quality, reliability and performance you can depend on across multiple RC sessions.
• Laboratory-Tested High-Performance Blend — This is not generic silicone oil; it is specifically formulated and tested for RC differential applications, providing more consistent differential action and extended product longevity compared to standard alternatives.
• Reduces Diff-Out in Corners — The thicker 20,000cSt formulation helps prevent your differential from spinning out excessively when left and right tyres try to rotate at different speeds, which is critical for maintaining drive through corner exit and improving overall handling balance.
• Premium Silicone Formulation — Premium silicone provides superior stability across temperature ranges and driving conditions, ensuring your differential performs consistently whether you're running on clay, dirt, grass or mixed terrain typical of UK RC tracks and natural courses.
• 2-Ounce Bottle Size — The convenient 2-ounce bottle is perfectly sized for multiple differential refills or top-ups, giving you excellent value and allowing you to maintain consistent fluid levels throughout the racing season.
• One of the Most Important RC Tuning Options — Changing differential oil is widely recognised as one of the single most important tuning adjustments for off-road RC vehicles, directly influencing handling balance, traction consistency, and competitive performance.
• Factory Team Professional Grade — The Factory Team designation means this is the same diff fluid specification used by Team Associated factory racing drivers, bringing professional-level performance tuning within reach of every dedicated RC enthusiast.

Technical Performance

The AS5456 delivers professional-grade differential performance through carefully engineered silicone chemistry. At 20,000cSt viscosity, this is a premium-thick formulation designed specifically for off-road RC applications where precise control over differential slip is essential. The silicone base ensures stability across varying temperature conditions and driving intensities, meaning your differential will perform consistently whether you're running calm practice sessions or intense competitive racing. The laboratory-tested formulation provides more consistent differential action, which directly translates to more predictable handling characteristics and improved confidence when pushing your RC car to its limits. This viscosity grade is particularly effective at limiting diff-out, the phenomenon where the differential allows excessive rotation differences between left and right tyres in corners. By controlling this behaviour, the AS5456 helps your RC car maintain drive through corner exit, improve corner speed, and deliver more stable, manageable handling across various off-road surfaces. The premium silicone compound offers extended longevity, meaning you'll get more refills from each bottle and experience consistent performance throughout an entire racing season. For off-road vehicles competing in tight, technical courses where every handling adjustment matters, or for recreational drivers seeking to maximise their investment in quality RC equipment, the engineering quality embedded in this Team Associated formulation justifies its position as a core tuning essential. The USA manufacturing by Lucas Oil Products ensures tight quality control and consistency batch to batch, so you can rely on identical performance characteristics every time you refill your differentials.

What's in the Box

• 2-ounce bottle of Associated Factory Team 20,000cSt Silicone Differential Fluid

Frequently Asked Questions

• What does 20,000cSt mean and why is this viscosity important for my RC differential? — The cSt rating (centistokes) measures oil viscosity, or thickness. At 20,000cSt, this is a thick, premium formulation that provides maximum control over differential slip, helping to limit diff-out when your RC car corners and left and right tyres try to rotate at different speeds. This thicker fluid helps maintain drive through corner exit and improves handling consistency across various off-road surfaces.
• How much diff oil do I need and how often should I change it? — A typical RC differential requires only a small amount of fluid, so the 2-ounce bottle provides multiple refills. Most serious racers refill their differentials regularly to maintain consistent performance, and you should refresh your diff oil if you notice changes in handling balance or if your differentials become contaminated with dirt and debris during use.
• Will the AS5456 work in all Team Associated RC cars? — This diff fluid is compatible with all Team Associated vehicles that use standard silicone differential oil, including popular models like the RC8B3, RC8T3, B6, T6, SC10, and other current and legacy Team Associated platforms. Always consult your specific vehicle manual to confirm diff type and capacity.
• What is the difference between this 20,000cSt fluid and thinner alternatives? — Thicker diff oil like the 20,000cSt AS5456 provides more controlled differential slip and is ideal when you want maximum cornering stability and reduced diff-out. Thinner oils allow more differential slip, which can improve traction in some conditions but may reduce cornering control. The 20,000cSt grade is an excellent choice for drivers needing thicker oil to stabilise corner exit and maintain drive, supporting consistent performance on a variety of off-road surfaces.
• Is this suitable for beginners? — Yes, this diff fluid is suitable for RC enthusiasts at all levels. Beginners benefit from using quality diff fluid because it improves overall handling consistency and makes cars more predictable and easier to drive. Understanding differential tuning, starting with a quality product like the AS5456, is part of developing deeper knowledge of RC car setup and performance.
• Why is changing differential oil described as one of the most important tuning options? — Because differential fluid directly controls how your RC car's wheels behave in corners and during acceleration. This fundamental aspect of handling cannot be adjusted any other way, making diff oil selection one of the highest-impact tuning changes available, often rivalling suspension and tyre adjustments in importance.
• Why choose the Team Associated Factory Team version? — Made in the USA exclusively for Team Associated by Lucas Oil Products, this is the professional-grade option trusted by Team Associated factory racing drivers worldwide. The Factory Team designation ensures you're using the exact same specification as competitive racers, bringing professional-level performance tuning to your RC car.

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 ASSOCIATED SILICONE DIFF FLUID 20000CST AS5456 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.