That is 80 weight.
5w30
My 2002 trailblazer takes 7 qts. The recommended oil weight is on the oil cap.
The manual calls for a 10w30 motor oil. Just any 10w30 motor oil will work depending on your preference of brand.
10w30 weight oil.
5W30 oil.
5W30 weight in the winter. 10W30 weight in the hot summer months. DO NOT USE NOTHING HEAVER ARE IT WILL BURN THE VALVE TRAIN UP.
Look at your oil cap. The weight is on the cap.
5w30
5w20
5W30 Weight ONLY.
6 qts. of oil
5W30 And it is written on the oil cap.