What size fuel tank is on a 1990 Chevy Silverado?

The fuel tank size on a 1990 Chevy Silverado varied depending on the body style (regular cab, extended cab, crew cab) and engine option. There wasn't a single standard size. To know for sure, you'll need to check:

* The owner's manual: This is the best source.

* The fuel tank door: Sometimes the size is stamped on the door.

* The VIN: A dealer or parts specialist can look up the specifications using the VIN.

Expect the size to be somewhere between 15 and 26 gallons.