Mobil 1 Extended Performance Full Synthetic Motor Oil 10W-30, 5 qt. $18.64

10w30 only. It’s good down to 0 degrees Fahrenheit. If you are down south, that’s perfectly fine in the winter if your car uses a 30 weight oil.
This is good for up to 15K miles for oil change intervals. Be sure to use an equivalent extended performance oil filter too.
https://www.walmart.com/ip/Mobil-…8tEALw_wcB
https://www.walmart.com/ip/Mobil-…8tEALw_wcB