Driving in town, I got a message on my dash saying "no oil pressure stop engine." I was in the next town over, about 20 minutes from home, so I walked to a gas station, bought all 5 quarts of 5w30 they had, dumped them in, and went straight for Walmart. I bought 20 quarts there to try to get me home, but I fell about 6 miles short. My father had to run out with more oil which got me to the shop where I had them replace the rear main.