fourmat wrote:
Effy wrote:
I am confused. Why is fresh oil better at eliminating the issues water and acid can cause than old oil? Does old oil somehow create more moisture? Even after it's up to operating temperature while transporting to storage? And if so how much? Explain to me how old oil creates more condensation than new oil. Unless a critical piece was left out that after you change it you don't start it creating heat and thereby moisture. But if you have to drive it to storage it seems like it makes no difference. Especially 5 months on oil that only has 1000 miles on it. Seems like a total waste of time, money and resources.
Old oil has higher acid content than new oil, caused by combustion. It doesn't absorb more condensation just higher acid content. This acid can etch bearings and corrode internals that said 1,000 miles on oil I would not be concerned
I wasn't trying to indicate that fresh oil absorbs less moisture than old oil.....BUT as pointed out, old oil already has more contaminants in it from the combustion/heating process and it's just a good practice to have fresh oil circulated through the machine before storing for a long time. As I said, if it's not in an indoor, climate controlled environment, then it's more likely to gather condensation inside the oil pan and engine block.