5W30 weight.
6 liters
SAE 5W30 any major brand conventional or synthetic oil.
5w30
For a 2003 Chevy Suburban (all engine sizes), the recommended viscosity is 5W30.
6
2003 Chevy Silverado 2500HD 6.0l 2004 Chevrolet Trailblazer 2002 Chevrolet Avalanche
I don't think they ever came with diesels, so any 5w30 will do well. If it does have a diesel then 15w40.
PF46 if 5.3.
6 quarts.
Counter clockwise
If it is a 5.3L then it takes 6 quarts of oil.
Should be on the rear or side of the oil pan