Product Description
Heavy-Duty Extended-Life Coolant (Nitrited OAT), -35°C. KATMOTO HD ELC Coolant -35°C is a ready-to-use heavy-duty extended-life coolant based on nitrited organic-acid technology (NOAT), providing freeze and boil-over protection plus dedicated cylinder-liner cavitation protection for commercial diesel and construction/mining engines.
Key Performance Features
| -35°C freeze protection
protects the cooling system against freezing down to -35°C as supplied. |
Long-life corrosion protection
nitrited organic-acid (NOAT) inhibitors protect aluminium, iron, copper, brass and solder. |
| High boiling protection
raises the boiling point to resist summer overheating and boil-over. |
Extended service life (typically 6 yr / 600,000 km HD)
extended service life reduces maintenance and coolant changes. |
| Hard-water tolerance
stable performance and scale control across water qualities. |
Foam & deposit control
low-foaming formulation keeps the cooling system clean. |
Applications & Performance Level
| Applications | Commercial diesel and construction/mining engine cooling systems requiring a HD ELC (NOAT) coolant with -35°C freeze protection. |
| Specification | ASTM D6210 (heavy-duty) — heavy-duty engine coolant performance standard. Nitrited OAT (NOAT) — extended-life inhibitors with liner cavitation protection. Liner cavitation protection — protects wet cylinder liners against cavitation-erosion pitting. Extended HD service — typically up to 6 years / 600,000 km with extender. Diesel-engine optimised — formulated for heavy-duty diesel cooling systems. |
| OEM Suitability | Commercial diesel and construction/mining engines (Cummins, Cat, Detroit, Volvo, etc.) specifying a heavy-duty ELC/NOAT coolant. Confirm OEM spec and use the correct extender. |
| Important Notice | Freeze protection is as supplied (ready-to-use). ”Suitable for” does not mean official approval unless separately certified. Follow the OEM coolant specification, color compatibility and change interval. |
| Property | Test Method | Target Typical Value |
| Appearance / Color | Visual | Red liquid |
| Coolant Base | — | Ethylene glycol (NOAT, nitrited) |
| Freezing Point | ASTM D1177 | ≤ -35°C |
| Boiling Point | ASTM D1120 | ≥ 108°C |
| Specific Gravity @ 20°C | ASTM D1122 | 1.070 |
| pH Value | ASTM D1287 | 8.5 |
| Reserve Alkalinity | ASTM D1121 | ≥ 5.0 |
| Effect on Metals (corrosion) | ASTM D1384 | Pass |
| Foaming Tendency | ASTM D1881 | Pass |
| Cylinder Liner Cavitation | ASTM D2809 | ≥ 8 rating |
| Silicate / Phosphate | — | Free; nitrited (NOAT) |
Note: The target values above are typical product values for reference only; final production data is subject to the official KATMOTO Technical Data Sheet (TDS) and laboratory test report.