It should be on the valve cover.
5 quarts.
Look at your oil cap. The weight is on the cap.
Says it on the oil cap.
10w-40.
5.
10w-40.
The oil cap on a 1998 Chevy Blazer is located on the passenger side of the motor. It is just to the left of the manifold cover.
5W30 And it is written on the oil cap.
attaCHED TO THE OIL CAP
There is usually a cap on one of the valve covers. There is an oil filler cap, you are just overlooking it. Look closer.
Need to know what engine it has.
In the bottom of the oil pan, towards the rear of it.