When was your car built? The oil may have been in the engine for a year or more. 12 months is the limit on my 2013 per the owners' manual regardless of the mileage.
That makes absolutely no sense to me at all. Does oil lose something through aging? If so, how come it sits on shelves in parts stores and in boxes in warehouses for years and is still good? I don't get that at all!DodgeGCaravan said:When was your car built? The oil may have been in the engine for a year or more. 12 months is the limit on my 2013 per the owners' manual regardless of the mileage.
Chuzz, yes, oil does have a long shelf life. Not so in an engine.chuzz said:That makes absolutely no sense to me at all. Does oil lose something through aging? If so, how come it sits on shelves in parts stores and in boxes in warehouses for years and is still good? I don't get that at all!
Once the oil is exposed to oxygen in the atmosphere or gasoline or other contaminants once the engine has been run the first time it will start to age. In the unopened bottle there is very little air at top so the shelf life is longer.chuzz said:That makes absolutely no sense to me at all. Does oil lose something through aging? If so, how come it sits on shelves in parts stores and in boxes in warehouses for years and is still good? I don't get that at all!