So, it turns out, according to this article "The 3000 Mile Oil Change Myth", that you don't have to change the oil in your car every 3000 miles like every single money-grubbing oil change person wants you to.
In fact, doing so is usually unnecessary since most auto makers now recommend changing your oil at 5,000, 7,000, or 10,000 mile increments under normal driving conditions. Even more, changing it more frequently ultimately eats up more of the oil that is so costly and precious these days, harming our environment, costing us extra money, and it will eventually result in aliens taking over our world after we complete spoiling it.
Believe it! Now I don't feel so guilty about delaying getting that oil change ... so, just you figure out how to calculate the permittivity of your oil and quit wasting time, money, and the environment!