BMW coolant is just not pre-combined when ordered. Just buy a gallon of coolant and also a gallon of distilled drinking water, then put together the combination as essential. I'd personally just increase a cup of distilled drinking water if it only demands, say, a cup of coolant or h2o. https://buy-spoiler-for-car61605.howeweb.com/27788121/everything-about-types-of-coolant-for-bmw