I have used both detergent and non-detergent oils in various motors. If a motor is old and tired, then I just keep going with the non-detergent oil until I psyche myself up to do an overhaul. Then I run a detergent oil for the last time it works. Cleans out a great deal of the junk all by itself. Basically, if a motor is in good order, with good pistons, sleeves, rings and oil scraper(s) then a detergent oil is fine. If a motor is a bit tired and is keeping compression by virtue of carbon build-up then a detergent oil will very quickly remove the build up and bring the engine rebuild date much closer than might otherwise have been the case.
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Today's Featured Article - Identifying Tractor Noises - by Curtis Von Fange. Listening To Your Tractor : Part 3 - In this series we are continuing to learn the fine art of listening to our tractor in hopes of keeping it running longer. One particularly important facet is to hear and identify the particular noises that our
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