5W-30 FA-4 High Performance Diesel Engine Oil - RE12

5W-30 FA-4 High Performance Diesel Engine Oil - RE12KCK 5W 30 FA 4 High Performance Diesel Engine Oil Advanced Synthetic Diesel Oil Built to Outlast, Outperform, and Outprotect Part Number: RE12Formulation: Group III Ester SyntheticApplication: Heavy Duty, 4WD, Commercial, and High Performance Diesel EnginesViscosity: SAE 5W 30 (FA 4 Low Viscosity) Engineered for Power. Proven for Longevity. Ready for Anything. KCK 5W 30 FA 4 is a next generation synthetic diesel engine oil designed to meet the demands

KCK 5W-30 FA-4 – High Performance Diesel Engine Oil

Advanced Synthetic Diesel Oil Built to Outlast, Outperform, and Outprotect

Part Number: RE12
Formulation: Group III / Ester Synthetic
Application: Heavy-Duty, 4WD, Commercial, and High-Performance Diesel Engines
Viscosity: SAE 5W-30 (FA-4 Low-Viscosity)

Engineered for Power. Proven for Longevity. Ready for Anything.

KCK 5W-30 FA-4 is a next-generation synthetic diesel engine oil designed to meet the demands of modern, high-efficiency, low-emissions diesel powertrains. Formulated using high-purity Group III base oils enhanced with esters for film strength and stability, it delivers serious gains in fuel economy, durability, and performance — even under extreme Aussie conditions.

This is not your average fleet oil. It’s the result of our Hot Blend manufacturing process, where additives are integrated at elevated temperatures to ensure complete dispersion and molecular bonding. The result? A more stable, longer-lasting oil with unmatched additive retention and shear resistance — the kind of performance you can count on when failure simply isn’t an option.

Top-Tier Performance. Built-In Benefits.

Fuel Economy with Backbone
Unlike conventional 15W-40 oils, FA-4 low-viscosity formulas reduce internal drag and parasitic power loss — allowing your engine to run cooler and more efficiently. That’s real-world fuel savings of up to 2% or more across fleets, without compromising wear protection.

Extreme Wear Resistance at Cold Starts and Peak Load
Cold starts are where 90% of engine wear occurs. Our advanced ester-enhanced formula delivers rapid oil circulation and forms a robust lubricating film, shielding bearings, cams, and rings from metal-on-metal contact — even when fully loaded or climbing hills.

Longer Drain Intervals Without the Guesswork
Exceptional oxidative stability resists viscosity breakdown and acid build-up, extending drain intervals while protecting engine internals. Perfect for fleet managers aiming to reduce downtime and oil change frequency — safely and cost-effectively.

Keeps Engines Spotless, Inside and Out
Built-in high-performance detergent/dispersant additives control soot, neutralize acids, and prevent sludge build-up. Pistons stay cleaner, rings stay mobile, and you stay on the road — not in the workshop.

Ready for Harsh Aussie Extremes
Whether it’s freezing mornings in Tasmania or 50°C in the Pilbara, KCK FA-4 maintains consistent viscosity, meaning no lag, no engine strain, and no loss of pressure.

Total Emissions System Compatibility
Low-ash, low-phosphorus formula protects DPFs (Diesel Particulate Filters), SCR (Selective Catalytic Reduction), and EGR (Exhaust Gas Recirculation) systems — extending the life of expensive emissions hardware without reducing oil performance.

Perfect For:

• High-output turbocharged diesel engines

• Long-haul transport fleets and commercial delivery trucks

• Modern utes and 4WDs used for towing and touring

• Earthmoving and construction equipment operating under extreme duty cycles

• Operators, fleet managers, and performance diesel enthusiasts demanding maximum reliability and efficiency

Exceeds the Toughest Global Standards

API Licenses: FA-4 / CK-4 / CJ-4 / CI-4
ACEA Compliant: E7 / E11 (2022)
OEM Approvals & Compatibility:

• Cummins CES 20086

• Caterpillar ECF-3

• Detroit Diesel DFS 93K222

• Volvo VDS-4.5

• Ford WSS-M2C171-F1

• Mercedes-Benz MB 228.31

• MAN 3775

• MTU Type 2.1

• JASO DH-2

• Deutz DQC III-18LA

Why KCK? Why It Matters.

Unlike budget oils that rely on recycled base stocks and cold blending, KCK uses only virgin Group III base oils and esters — and then takes it further with our Hot Blend Technology. By blending additives at elevated temperatures, we ensure complete solubility, uniform additive dispersion, and unmatched chemical stability. This means:

• No additive dropout

• Better film integrity under high load

• Superior long-term engine protection

• Greater thermal resistance and viscosity retention

You’re not just paying for oil — you’re investing in equipment longevity, lower total cost of ownership, and fewer mechanical surprises down the road.

KCK 5W-30 FA-4 – The Elite Choice for Serious Diesel Work

KCK 5W-30 FA-4 — Diesel Defense That Doesn’t Quit.

For fleets, trades, and performance drivers who demand more from every litre of diesel, this is next-level engine oil. Built tough, proven strong, and trusted across Australia. 

Whether you’re hauling, crawling, or cruising, take your engine performance to the next level with KCK 5W-30 FA-4, a Group III/ester synthetic diesel engine oil engineered for modern performance, maximum protection and extended drain intervals. Built for drivers and operators who demand nothing but the best, this advanced formula is designed to outlast, outperform, and protect even under the harshest conditions.

Whether you're behind the wheel of a heavy-duty truck, powering through trails in your 4WD, or pushing performance on the open road, KCK 5W-30 FA-4 delivers:

🦘 Proudly Australian Made & Owned
Born from brutal conditions. Trusted nationwide. KCK oils are built for the people who work hard, haul heavy, and don’t cut corners.

5L

(Also available in 20L, 205L, 1000L)

Part No. RE12

SDS

PDS