There is enough oil in the ground to last for about 10 years unless new technology is invented. There is enough oil tied up in oil shale to last for many centuries when an efficient way of extracting it is discovered. There is enough oil tied up in the oil sands of Canada to provide for the needs of the world for a century if a more efficient process of extracting it is found.
Oil last forever but oil does get dirty. Synthetic oil like conventional oil does get dirty. You can extend your oil changes slightly if you synthetic oil but no more than two or 3000 miles.
It will last for 40yrs. If we keep having any more leaks it'll run out quicker.
how long will a minimum order of oil last
How long does 4 inches of oil last in a 500 gallon oil tank? It will last forever unless someone removes it...! If you mean "How long will 4 Inches of oil last in the tank if you are using it to heat your house", that would be very difficult to answer as different furnaces will consume different amounts of oil, just like cars consume different amounts of fuel.. And, the colder it is outside, the more the furnace will run so It would consume the fuel faster.
120
500 years.
one week
We found boat oil still in the can how long does it stay good before it goes bad
Oil is only likely to last a few months in a vehicle. This is less if the vehicle is used a lot.
Crude oil will probably last 20 years - optimistic scientists say around 25.
Change the oil filter every time you change the oil.
Change the oil filter every time you change the oil.