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so in my e90 328i I had a bad coolant leak and car overheated and turned off bc there was no coolant left. I put in about a gallon of distilled because I didn’t want to waste coolant if the leak was still there. I fixed leak but I still put coolant. I probably have like 30% antifreeze and 70% distilled water I live in San Diego and this winter I was going to be driving up to Big Bear and temps there at night can get to the teens. Is it okay to run my car with the 30/70 mix it is at right now ? I don’t want to have to flush my coolant and buy new to ensure a 50/50 mix because I just had to flush and refill coolant two times in past month. Please let me know if the 30/70 is good I don’t want to get stuck in Big Bear
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