Perform a coolant drain and fill at home It’s hard to do a full coolant flush at home (see why here). But it is a bit easier to do a coolant drain and refill yourself. Here’s how. Ignore the recommendation to drain coolant from the radiator drain The old plastic drains break and leak In the old days metal radiator contained brass drain petcocks. But modern radiators have plastic side tanks and plastic drains. The drain sits unused for almost 10 years before you decide to open the drain. I … Read More
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