I have always changed my own oil, dad was a diesel mechanic so it was not acceptable to have someone change your oil regardless of cost. Always said no one will ever do a better job on your own vehicle then you will. Now I manage a fleet of over 150 vehicles mostly diesel. So my personal diesel I use factory Motorcraft filter and Travelers 15/40 in the 5 gallon bucket. After many years of personal experience managing fleets as long as the oil was changed within reasonable intervals it didn’t seem to make a difference on synthetic or not. We ran and still run vehicles up to 350,000 miles. But if you hate it don’t do it, I enjoy it.
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