Question: Does Oil Deteriorate With Age?

What happens to engine oil when it sits?

Oil degrades over time.

The longer it sits, the less viscous it becomes and thus, the less effective it will be at keeping various engine components properly lubricated.

Even if you don’t drive very often and you’re not hitting the recommended mileage interval, it’s best to get your oil changed twice a year..

How long can oil sit in a car before it goes bad?

between 2 yearsUnused, unopened and stored in its original container out of extremes of temperature, motor oil will last for an “extended period”. They then go on to suggest that the oil shouldn’t be used after a few years; the exact period varying between 2 years (according to Total) up to 5 years (Mobil).

Does oil have a shelf life?

Simply put, the “shelf life” of oil is up to five years. It’s not something that goes bad in a couple of months. If you have motor oil that you have no idea how old it is, just have a look at it. …

Does engine oil need to be changed every year?

It’s not just about miles: If you don’t drive your car a lot, your oil still needs to be kept fresh. Even if you drive fewer miles each year than your automaker suggests changing the oil (say, 6,000 miles, with suggested oil-change intervals at 7,500 miles), you should still be getting that oil changed twice a year.