as a car guy, i love reading and thinking about things like the best way to change oil, the best type of oil and filter to use, how long of an OCI to use, things like bypass filters or optimum air filtration, etc. but the truth is i’ve never come close to wearing out an engine and i’m never going to. my daily driver gets traded in every few years on a new one, and my old stuff only gets like 2k miles per year.
so i tend to think this sort of thing gets exaggerated quite a bit because we are all obsessive hobbyists, and the truth is almost none of us would ever see any difference over time if we changed whether we drained our oil hot vs. cold.
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