Modern engines are made to very exacting tolerances that could not easily be met with older machining technology. I have read that newer engines with 100K miles still have much closer tolerances than older engines had when they were brand new. Add in fuel injection not washing down the cylinder walls and contaminating the oil and you can get some long life out of an engine if all goes well. I'm young at 45 and I can remember when any car or pickup was considered worn out at 100K miles, now they are just getting broken in! Synthetic oil is great for a race engine or where the oil will be pushed to heat limits but not really needed in a normal engine. Check what the manufacturer recommends.
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Today's Featured Article - Listening to Your Tractor - by Curtis Von Fange. Years ago there was a TV show about a talking car. Unless you are from another planet, physically or otherwise, I don’t think our internal combustion buddies will talk and tell us their problems. But, on the other hand, there is a secret language that our mechanical companions readily do speak. It is an interesting form of communication that involves all the senses of the listener. In this series we are going to investigate and learn the basic rudimentary skills of understanding this lingo.
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