{"id":9358,"date":"2025-08-05T15:25:59","date_gmt":"2025-08-05T14:25:59","guid":{"rendered":"https:\/\/www.exchangemycar.co.uk\/blog\/?p=9358"},"modified":"2026-06-22T10:42:57","modified_gmt":"2026-06-22T09:42:57","slug":"what-coolant-for-my-car","status":"publish","type":"post","link":"https:\/\/exchangemycar.co.uk\/blog\/what-coolant-for-my-car\/","title":{"rendered":"What Coolant I Need For My Car?"},"content":{"rendered":"

If you\u2019re standing in a store looking at a wall of blue, pink, and green bottles, wondering, ” Which one do I need for my car? You are not alone. Choosing the wrong coolant can lead to overheating<\/a>, corrosion, or costly repairs.<\/span><\/p>\n

In this guide, you\u2019ll learn exactly how to find the right coolant for your car. From types and colours to safe top-up tips, we\u2019ve got you covered step by step.<\/span><\/p>\n

Key Takeaways: How Do I Find the Correct Coolant for My Car?<\/span><\/h2>\n

The absolute fastest way to find out is to use a free registration lookup tool on a UK car parts website (like Euro Car Parts or GSF). Simply enter your reg plate, and the system will filter out any incompatible chemistries. However, the best ways are the following:<\/p>\n

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  1. Check the vehicle handbook.<\/li>\n
  2. Look for a coolant specification label under the bonnet.<\/li>\n
  3. Contact your vehicle dealer with your registration number.<\/li>\n
  4. Use a reputable coolant lookup tool.<\/li>\n
  5. Colour is not<\/b> a reliable indicator.<\/li>\n<\/ol>\n

    What Coolant for My Car is the Right One?<\/span><\/h2>\n

    The right coolant for your car depends on the engine type and the manufacturer’s specs. You can\u2019t just use any other coolant. Using the wrong one may damage engine parts or reduce corrosion protection.<\/span><\/p>\n

    Check your vehicle handbook or the label under your bonnet. Most cars in the UK use either OAT (Organic Acid Technology) or HOAT (Hybrid Organic Acid Technology) coolants. Older models may need IAT (Inorganic Acid Technology).<\/span><\/p>\n

    Modern vehicles usually need long-life OAT coolant. It lasts longer and offers better engine protection. However, some brands use their own blend, so follow their recommendation.<\/span><\/p>\n

    When in doubt, ask your mechanic. Always match the right coolant with your car for safety.<\/span><\/p>\n

    What Are the Different Types of Coolant?<\/span><\/h2>\n

    \"types<\/span><\/p>\n

    Coolants have different chemical formulas. Using the wrong type can harm your engine and lower your car\u2019s value<\/a> over time. Here\u2019s a quick breakdown of the main types you\u2019ll find in the UK market.<\/span><\/p>\n

    1. IAT (Inorganic Additive Technology)<\/span><\/h3>\n

    This coolant is usually green. It contains silicates that protect older engines from corrosion. IAT is commonly used in old and <\/span>classic cars<\/span><\/a> made before 1998. It needs replacing every two years for full protection.<\/span><\/p>\n

    2. OAT (Organic Acid Technology)<\/span><\/h3>\n

    You\u2019ll often find OAT coolant in orange. It uses organic acids instead of silicates. It\u2019s designed for newer vehicles and offers longer protection, up to five years. Don\u2019t mix it with other types.<\/span><\/p>\n

    3. HOAT (Hybrid OAT, Phosphate-Free)\u00a0<\/span><\/h3>\n

    <\/b>This one is usually turquoise. It\u2019s phosphate- and NAP-free, so it suits some modern European engines. It combines the benefits of both IAT and OAT. Always check compatibility before use.<\/span><\/p>\n

    4. HOAT (Hybrid OAT with Silicates)<\/span><\/h3>\n

    This version is often yellow. It blends silicates and organic acids for balanced engine protection. It\u2019s used in various American and European models. Suitable for aluminium parts.<\/span><\/p>\n

    5. Si-OAT (Silicated HOAT)<\/span><\/h3>\n

    This type appears purple. It includes both silicates and organic acids. It offers long-lasting protection in high-performance engines. Found in many German vehicles<\/a>.<\/span><\/p>\n

    6. P-HOAT (Phosphated)<\/span><\/h3>\n

    This coolant is usually blue or pink. It contains phosphates and organic acids. Most Japanese and Korean cars, like <\/span>Toyota<\/span><\/a> or <\/span>Hyundai<\/span><\/a>, use it. Check your handbook before topping up.<\/span><\/p>\n

    Each coolant is made for specific engines and climates. Always follow the manufacturer’s guide before making a choice.<\/span><\/p>\n

    Typical Coolant Choices by Car Manufacturer<\/span><\/h2>\n

    Different car brands recommend specific coolant types. This is based on engine materials and design.<\/span><\/p>\n\n\n\n\n\n\n\n\n\n
    Car Manufacturer<\/th>\nTypical Coolant Chemistry<\/th>\nCommon Specification Examples<\/th>\n<\/tr>\n<\/thead>\n
    BMW, MINI<\/td>\nHOAT (Hybrid Organic Acid Technology)<\/td>\nBMW Blue Coolant, G48<\/td>\n<\/tr>\n
    Volkswagen, Audi, SEAT, \u0160koda<\/td>\nSi-OAT (Silicated Organic Acid Technology) or Glycerine-based<\/td>\nG12++, G13<\/td>\n<\/tr>\n
    Ford, Vauxhall<\/td>\nOAT (Organic Acid Technology)<\/td>\nFord Super Plus Premium, Dex-Cool-based formulations<\/td>\n<\/tr>\n
    Toyota, Honda, Nissan<\/td>\nP-HOAT (Phosphated Hybrid Organic Acid Technology)<\/td>\nToyota Super Long Life Coolant, Honda Type 2<\/td>\n<\/tr>\n
    Older Cars (Pre-1998)<\/td>\nIAT (Inorganic Acid Technology)<\/td>\nTraditional Green Coolant (Silicate-based)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    How to Check and Top Up Coolant Safely<\/span><\/h2>\n

    Start with a cold engine. Never open the coolant cap while it\u2019s hot. Hot coolant can spray and burn you.<\/span><\/p>\n

    Locate the coolant reservoir. It\u2019s usually a clear plastic tank with a coloured liquid inside. Look for the min and max level markers.<\/span><\/p>\n

    If the coolant is below the minimum line, it needs topping up. Use the correct coolant type for your car. Don\u2019t guess. Check your manual or ask your mechanic.<\/span><\/p>\n

    Unscrew the cap slowly. Pour the coolant until the level is just below the max line. Don\u2019t overfill it.<\/span><\/p>\n

    Secure the cap tightly. Wipe up any spills. Run the engine for a few minutes and recheck the level. If levels drop often, you may have a leak. In that case, speak to a professional.<\/span><\/p>\n

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    \n Don\u2019t Let Cooling Issues Drain Your Pocket\n <\/h3>\n

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    \n \"GB\"\n <\/div>\n \n <\/div>\n <\/div>\n
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