1 Palm oil can last for several months. 2  Peanut oil (refined) will last for two years. 3  Vegetable oil can last for a year or longer as long as it is tightly covered.  Olive oil may be kept in the cupboard (at temperatures between 57°F and 70ºF (14°C and 21ºC) for up to 15 months.
http://www.wikihow.com/Store-Cooking-Oil
There's some good news, then some bad news, then more good news again, in that order. Good News A: You don't have to throw out used oil. Often you can reuse it many, many times! Bad News: There's no hard and fast rule for how many time you can reuse that oil. Distrust any source that gives a firm answer on the number times you can reuse oil, including this site.
http://www.seriouseats.com/2013/09/ask-the-food-lab-how-many-times-can-i-reuse-fry-oil.html
Oils are extracted from various plants - either from fruits as in olive, vegetables as in corn, seeds as in sunflower, or nuts as in peanut. So, how long does oil last? When properly stored, the shelf life of oil past its best before date is ... But remember that oil, like a lot of other condiments, usually has a best before date and not a use by date or an expiration date.
http://www.eatbydate.com/other/condiments/how-long-does-oil-last/
exists and is an alternate of . ANSWER: If its vegetable oil, it loses its viscosity every time its used and will go dark on you. Peanut oil will last longer. I keep oil until it gets dark or until I use it to cook chicken or pork in, then its discarded. Bacon grease will not go bad ever. If I use oil to cook fish in, it can only be used for fish from that point on, because it retains the salt and fish taste.
http://www.answers.com/Q/How_long_does_used_cooking_oil_stay_fresh
If you’re not storing oil, that’s what you may end up eating every day, meal after meal. Quite a nightmare! Oil is tricky to store long-term, however. Polyunsaturated oils can turn rancid before they actually smells that way, and rancid oils lose much of their nutritional value. There’s evidence that rancid oils contain free radicals, which can be a health threat.
http://thesurvivalmom.com/how-to-store-oil-safely/
Some food storage experts have given up on storing oil long-term and have switched to storing shortening. It can easily be stored in jars, and with the use of a Food Saver, can be vacuum sealed for true long-term storage. When oil is called for in a recipe, the shortening is melted, and there’s your oil.
http://thesurvivalmom.com/how-to-store-oil-safely/
The Type of Oil and the Temperature. Different oils have different makeups in terms of their relative levels of saturated and unsaturated fats and other solids. This can affect the way they fry and the temperatures to which they can be heated.
http://www.seriouseats.com/2013/09/ask-the-food-lab-how-many-times-can-i-reuse-fry-oil.html
Oil can be stored safely but will never have the long shelf lives of our other long-term storage foods. Keep in mind the four main factors that affect shelf life: light, oxygen, temperature, and time and apply them to the oils you store.
http://thesurvivalmom.com/how-to-store-oil-safely/
In general, it will be one of the last expiring ingredients in any dish, soaking into any other ingredient. In determining how long Oil lasts, our content incorporates research from multiple resources, including the United States Department of Agriculture and the United States Food & Drug Administration.
http://www.eatbydate.com/other/condiments/how-long-does-oil-last/
How long does oil last? The shelf life of oil depends on the best before date and how it is stored. Many people ask does oil go bad? Although they do tend to last longer than their best before dates, the answer to does oil go bad is most definitely yes!
http://www.eatbydate.com/other/condiments/how-long-does-oil-last/
how long can i keep vegetable oil for
You can keep vegetable oil for a year. You can keep vegetable oil for a year or longer as long as it is tightly covered.