M Moises Contreras New member Joined Aug 10, 2010 Messages 1 Reaction score 0 Points 0 Aug 10, 2010 #1 The truck is a 1500 1999 silverado, 5.3L
S spauldingace New member Joined Aug 17, 2010 Messages 1 Reaction score 0 Points 0 Aug 17, 2010 #2 I have '01 with the same engine. According to the owner's manual my truck requires Dexron III ATF.
