BMW coolant is not really pre-mixed when ordered. Just buy a gallon of coolant along with a gallon of distilled water, then put together the combination as required. I'd personally just insert a cup of distilled h2o if it only demands, say, a cup of coolant or h2o. At the https://precisionautorepair93603.blogsuperapp.com/27748605/details-fiction-and-types-of-coolant-for-bmw