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What car has a 20 gallon gas tank?

There isn't a single model universally marketed as a 20-gallon tank, but several midsize pickups and SUVs use fuel-tank capacities near that size. Notably, the Toyota Tacoma and Nissan Frontier commonly list around 21 gallons, depending on year and configuration.


Fuel-tank sizing varies widely by class, drivetrain, cab/bed configuration, and trim. If you need an exact 20.0 gallons for a specific year and model, you should confirm the precise specification from official sources, as numbers are often rounded in consumer listings and can differ by edition.


Examples of vehicles with around a 20-gallon tank


The following models are frequently cited as having fuel tanks close to 20 gallons, though exact capacity depends on year, body style, and options.



  • Toyota Tacoma — about 21.0 gallons (approximately 79.5 liters)

  • Nissan Frontier — about 21.0 gallons (approximately 79.5 liters)


Note: Tank capacities can vary by trim, cab style (two-door vs four-door), and optional equipment. For a precise match to 20 gallons, check the official spec sheet for the exact year and configuration you’re considering.


How to verify tank capacity for your model


To confirm the exact fuel-tank size for a specific vehicle, consult the official documentation or trusted sources tied to that model and year.


Where the numbers come from


Manufacturers publish tank capacities in the vehicle’s specification pages, owner’s manuals, and brochures. EPA fuel-economy labels and dealer sheets often reproduce these figures, but the most precise data comes from the manufacturer’s official specs for your exact trim and configuration.


Why tank size matters


Tank capacity influences driving range, refill frequency, and trip planning. When paired with real-world fuel economy, even small differences in tank size can alter how far you can travel between fills, especially on long road trips or in areas with fewer fueling options.


Summary


In practice, there isn’t a universally exact 20-gallon model, but several popular pickups and midsize SUVs sit near that capacity. The Toyota Tacoma and Nissan Frontier are commonly cited around 21 gallons, with true figures varying by year and configuration. For an exact 20.0-gallon specification, always check the precise year-and-trim data from the manufacturer. If you have a specific model and year in mind, I can look up the exact tank size for that configuration.

Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.