What size gas tank does a 1996 Chevy blazer have?

The 1996 Chevy Blazer had different gas tank sizes depending on the model and configuration. It could be either a 15-gallon or a 19-gallon tank. To know for sure, you'll need to check the vehicle's documentation (owner's manual) or look at the sticker on the driver's side doorjamb (often lists the GVWR and other specifications, sometimes including fuel tank capacity).