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KOOL-GUARD H-OAT – 38 is an ethylene glycol-based engine coolant formulated for optimum performance in heavy duty diesel engine applications but equally suitable for light-duty use. It employs established inhibitor technology and is phosphate and amine free. BTC Classification Type 3EN

Product Code: 08860

The inhibitors in KOOL-GUARD H-OAT -38 include organic acids in combination with borate, silicate and nitrite, which are well known for their ability to provide excellent protection in heavy-duty applications, particularly where there is potential for cavitation erosion-corrosion to occur.

KOOL-GUARD H-OAT -38 uses sophisticated silicate stabilisation technology to eliminate the potential for the formation of silicate gel often observed with inferior products, whilst other additives ensure good compatibility with hard water and prevent the formation of scale that can result from the use of hard water.

Performance Specifications, Approvals & Recommendations

HD4X, G05, ASTM D3306, ASTM D 4985, ASTM D 6210, SAE J 1034, BS 6580 (1992), BRITISH RAIL BR637*, CUMMINS CES14603, JCB STD00088 (HD), JOHN DEERE JDM H24, MAN 324, PERKINS

Please Note: The product images shown are for illustration purposes only and may not be an exact representation of the product.
Pack Sizes
Depending on the range, Rock Oil products are available in multiple sizes, including 400ml aerosols and 1L / 4L / 5L / 20L / 210L / bulk containers.