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 - The Day Tractor Lovers Dream About - by Angus Crawford. The day started at five o'clock on the morning of Friday, the January 29, 1999. My father, my sister, my uncle, my cousin and myself all climbed into my uncle's Toyota van. It was six thirty in the morning and we had a long day ahead. We traveled for six and a half hours to our destination - a little country town with a population of no more then one hundred and fifty people (57 of them being children under the age of thirteen). We arrived hoping to meet up with a man we knew had over one
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