Just changed the oil on my 92 GXE. I used 10W 40. I received my Chilton's today and it said 20W 50 or 10W 30. Any thoughts?

thanks

 

10W 40 is fine

 

im pretty sure i use 10w40, then again 5w30 sounds familiar but im pretty sure i put a 10 in it and 40, i remember thinking kinda hard to figure out those charts then my mom came over and showed me how easy it was to decide
MrGone

 

I think 5W-30 is the recomended weight, but 10W-40 will work fine for 3,000 miles. If you put SAE-90 in then you might have some problems