ZFS 4T Performance: Built for Riders Who Demand More Than Standard Protection

Demands of Modern Motorcycle Engines

When you ride a motorcycle, performance and protection are everything. Riders expect smooth power delivery, consistent response, and absolute reliability every time they set off. Unlike many other vehicles, a motorcycle is directly exposed to the elements and often ridden at higher speeds, which means any drop in performance, protection, or consistency is felt immediately by the rider.

Motorcycle lubrication requirements are also significantly different to cars. Most motorcycles operate with a shared lubrication system, where the engine, gearbox, and wet clutch all rely on the same oil. This places far greater demands on the oil, as it must perform multiple roles simultaneously. This creates unique challenges, including:

• Higher shear stress from gearbox components
• Clutch friction compatibility requirements
• Sustained high RPM operation
• Rapid thermal cycling

Motorcycle oil should be recognised as a key component, not just a routine service item. The quality and formulation directly influence engine durability, gear protection, clutch feel, and overall ride confidence. For bikes operating under greater stress, such as on the race track, high-performance motorcycle lubricants are purpose-built to meet these more demanding conditions, delivering enhanced protection where it matters most.

Why the ZFS 4T Performance Range was Originally Introduced

The ZFS 4T Performance range was developed as a higher-performance evolution of the standard ZFS/ZSB motorcycle range. While the core range delivers dependable protection for everyday riding, some riders demand more: a lubricant that can handle both daily journeys and the added stresses of track days. To meet that need, ZFS 4T Performance was developed. A more robust, motorsport-capable formulation that could go beyond conventional road performance while maintaining real-world usability.

Who the ZFS 4T Performance Range is for

Road Riders: Those looking for a high-performance alternative to their standard motorcycle oil, but with strong engine protection, smooth performance, and consistent reliability for everyday riding.

Track Day & Performance Riders: Riders who regularly switch between road and track use, and need an oil that can handle higher stress environments.

Workshops & Motorcycle Specialists: Professionals servicing a wide range of modern bikes who require a reliable, high-performance oil range that suits different engine types, riding styles, and service requirements.

Race-Ready Performance for Everyday Riders

ZFS 4T Performance is a fully synthetic, high-performance engine and transmission oil range formulated with dual ester technology. Designed for riders who demand motorsport-level performance combined with daily protection, the range delivers:

• Exceptional durability under sustained load
• Maximum power output and efficiency
• Superior wear protection for engine and transmission systems

The formulation features a constant high-friction profile for wet clutch compatibility and meets the JASO MA2 specification, ensuring smooth and reliable clutch operation in both air and water-cooled motorcycles, scooters, and ATVs. With high-temperature endurance, strong oxidation resistance, and advanced wear protection, the range is engineered to maintain peak engine efficiency even under demanding riding conditions.

Proven Under Extreme Conditions: Tested, Trusted, and Reused

Laboratory testing provides valuable performance data, but real-world endurance testing offers a deeper level of validation. The ZFS 4T Performance range was tested by competitor Bartłomiej Tabin at the Dakar Rally, one of the most demanding endurance events in motorsport. Facing extreme heat, prolonged engine loads, dust exposure, and thousands of kilometres of harsh terrain, the oil was subjected to conditions far beyond typical use.

Tabin achieved a podium finish in the Veteran’s category, demonstrating both rider performance and mechanical reliability under sustained stress. Importantly, the oil delivered consistent protection and stability throughout the rally, reinforcing confidence in its performance beyond controlled testing environments. Following its initial Dakar trial, Tabin chose to run ZFS 4T Performance again in subsequent competition. This decision was not driven by obligation, but by trust built through direct experience in extreme racing conditions.

Why the Range is Now Expanding

The original range focused on two core viscosities, and following strong lab testing performance results, successful endurance testing at the Dakar Rally, and positive real-world feedback, Millers Oils gained the validation needed to expand the ZFS 4T Performance range with five additional oils. This expansion is a natural evolution extending the same proven performance DNA across a wider range of viscosities to suit more engines, riding styles, and operating conditions.

For workshops, this means greater flexibility while maintaining consistency within a single, proven performance family. For riders, it means access to race-validated protection tailored to their specific bike and riding demands.

Performance Built on Evidence, Not Assumption

Advanced formulations backed by real-world testing, technical expertise, and rider confidence, the ZFS 4T Performance range has been developed through a process grounded in evidence rather than assumption. With the range now expanded, riders and workshops can access the same proven performance across more applications, without compromising the protection, reliability, and consistency that define motorcycle lubrication.

Read more about the ZFS 4T Performance range.

Find out more and see the real-world results in the Dakar Rally case study.