engines collect moisture and it mixes with sulfur and other compounds to turn into sulfuric acid... So in the OLD days, you changed often and before going into storage.
roll forward to the 70s... modern hd oils have extreme base additives to fight and neutralize acids so they are NOT a problem. Modern oils come with a base number of 11.x which means they are not acidic till the reading gets below 7 which is neutral or same as water.
Driving the car will also keep the oil temperatures above 212,, usually around 220 and above, so any moisture is boiled off into vapor and sucked out the the pvc system. Also very little sulfur in the oils any more and lead by products are gone.
So the vehicle will be in relatively good shape going into storage. BUT will have heating and cooling cycles with condensation during storage, meaning that it will have the most danger at end of storage.
SO... use a good hd oil, and change the oil coming out of storage to get rid of the excess moisture from not being run.
Any car used for short trips where the engine does not get to full temp, will ALWAYS be an exception.. You can either run it out at hyway speeds once a week or change oil often...
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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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