1990 GMC Suburban Gas Tank Size

Gas tank size for 1990 GMC Suburban. Fuel tank capacity in gallons and litres for 4 available trims.

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TrimGallonsLitresFuel type
  • 1500 - 4dr SUV
  • (5.7L V8 4-speed Automatic)
37140Gas
  • 2500 - 4dr SUV
  • (5.7L V8 4-speed Manual)
37140Gas
  • 1500 - 4dr SUV
  • (5.7L V8 4x4 4-speed Manual)
37140Gas
  • 2500 - 4dr SUV
  • (5.7L V8 4x4 4-speed Manual)
37140Gas
1990 GMC Suburban

1990 GMC Suburban

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