Jayrad HOAT Coolant Concentrate – Built for Modern 4x4 Performance

Jayrad Coolant Concentrate is a premium HOAT (Hybrid Organic Acid Technology) coolant engineered for the demanding conditions faced by today’s 4x4s and touring rigs. Formulated with a specialised blend of long-life inhibitors, it delivers outstanding thermal stability and corrosion protection for modern engines — especially those built with aluminium components. Free from phosphates and amines and containing low silicates, this coolant ensures consistent, reliable performance over extended service intervals.

Designed to protect water pumps, gaskets, seals and all cooling system components, Jayrad HOAT Concentrate is suitable for petrol, LPG and light-duty diesel engines. Its compatibility with both aluminium and cast-iron blocks makes it ideal for everything from classic 4x4s to late-model setups. When mixed with demineralised water, it provides strong defence against overheating, freezing and scale formation, making it suitable for passenger, heavy, agricultural, stationary and motorcycle applications.

Directions for Use:

1. Mix Jayrad Coolant Concentrate with equal parts demineralised or distilled water following manufacturer recommendations.
2. Pour the diluted mixture into the cooling system.
3. Do NOT use undiluted.

Benefits:

• Advanced HOAT formulation for long-term, balanced protection
• Exceptional corrosion resistance for mixed-metal cooling systems
• Extended service life — up to 7 years or 1,000,000 km
• Protects water pumps, seals, gaskets and entire cooling circuits
• Safe for use in aluminium and cast-iron engines

Specifications & Performance Levels:

Meets or exceeds the following industry standards:

• ASTM D3306 / D4985 / D6210
• BS 6580
• Chrysler MS-9769 / MS-7170
• CUNA NC 956-16
• Deutz 0199-99-1115/6 / 0199-99-1115/2091
• Fiat 9.55523
• Freightliner 48-2288D
• GM 1825M / 1899M / 6277M
• JASO M325
• GE Jenbacher TA 1000-0201
• JIS K 2234
• John Deere JDM H24
• Kenworth R026-170-97
• KSM 2142 (Korea)
• Leyland/Rover BLS.22.AF.01
• Mack 014GS17009
• MB 325.0
• MTU MTL 5048
• Case New Holland WSN-M97B18-D
• Opel/Vauxhall B 040 1065 / Opel QL 13D100
• Saab-Scania 6901
• Scania T1.02-98 0813
• Toyota TSK2601G
• US Fed A-A-870-A
• Volvo VCS S
• Audi / Seat / Skoda / VW TL 774-C (G11) / TL 774-D (G12) / TL 774-F (G12+)
• Lamborghini TL 774-D (G12) / TL 774-F (G12+)
• Caterpillar EC-1
• Cummins CES 14603 / CES 85T8-2 / CES MG03
• Detroit Diesel DDC 7SE 298
• Federal Standard O-A-548D
• Ford ESE-M97B44-A / ESE-M97B44-D / ESEM97B18-C / M97-51A / WSS-M97B51-A1 / WSS-M97B44-D
• German Army TL 6850-0038/1
• Holden HN 2043 / HN 2217
• JCB STD 0088
• JI Case JIC-501
• Komatsu KES 07.892
• Liebherr MD 1-36-130
• MAN 324
• Mitsubishi ES-X64217
• Navistar MPAPS B-1 Type III
• Nissan NES M5059
• Peterbilt 8502.002
• Renault 41-01-001Q Type D
• SAE J1034 / J1941
• TMC RP329
• UNE 26.361.88