Found out a while back that my Mazda 5 has an oil leak above the oil filter. Researched it online and found out that I need to replace the entire oil cooler, since it is the old black model and I cannot replace the gasket. I found one for pretty cheap ($150 compared to the $400+ at other sites) and am going to replace it this weekend, along with an oil and oil filter change. Do I just take the old one off after draining the oil and put the new one on, or is there any gasket type stuff or anything that I need to do?
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