Oils are designed to hold "stuff" in suspension, up to a point. If you have "stuff" on the bottom of your pan then you aren't changing your oil often enough. I have never seen the need to run an engine before an oil change. All of the oil has already drained to the bottom of the pan from the last time it was run. Oil at below operating temperature will take a bit longer to drain out but this isn't really an issue. I just let it drain till it stops dripping, while I read the paper and have a cup of coffee.
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Originally Posted by HJBeck
Use oil extractor that has a ridged small tube one sticks down the dip stick hole. I do this after running the golf cart some where for 5-10 minutes to get as much stuff from the bottom of the pan in suspension. I use 10-30W synthetic oil and refill via the dip stick hole. 15-20 minutes work tops Use the old oil for my chain saw chain lubricant.
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