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why are car gas tanks on different sides

1 Answers

LaCatherine

12/23/25 11:43am

There's no single reason why car gas tanks are on different sides; it's primarily a result of manufacturer design choices and production efficiency, not a standardized rule based on the car's origin or model. The main factors are vehicle platform design and the need to balance weight distribution around other major components like the fuel tank, exhaust system, and spare tire well. This design freedom means you can't reliably guess the filler side by the car's brand nationality.

A key reason is platform sharing. Automakers build multiple models (sedans, SUVs, crossovers) on the same underlying platform. To save costs, the fuel tank and filler neck location might be fixed for that platform, leading to different positions across various models from the same brand. For example, a sedan and an SUV from the same manufacturer might have tanks on opposite sides because they use different platforms designed years apart.

Another consideration is global production and safety. In countries that drive on the left, having the fuel filler on the passenger side (the curb side) is safer, preventing drivers from having to pump gas next to traffic. Since many cars are sold globally, manufacturers don't standardize based on one market. The location is often chosen to balance the vehicle's weight, placing the heavy fuel tank opposite the driver or the exhaust system to improve handling.

Here’s a look at the filler neck location for some popular 2024 models, showing there's no consistent pattern:

Vehicle Make & Model	Fuel Filler Location	Likely Rationale
Ford F-150	Driver Side	Common design for full-size trucks for convenience at truck stops.
Honda CR-V	Passenger Side	Platform design shared with other models; balances exhaust system weight.
Toyota Camry	Driver Side	Consistent with many Toyota sedans; platform-specific design.
Chevrolet Equinox	Passenger Side	Platform sharing with models that have a center-exit exhaust.
BMW 3 Series	Passenger Side	German automakers often place it on the right for curb-side safety in RHD markets.
Tesla Model Y (Charge Port)	Driver Side Rear	Aesthetic and engineering choice for aero dynamics and charging cable reach.
Hyundai Tucson	Driver Side	Platform design prioritizing assembly line efficiency.
Jeep Wrangler	Passenger Side	Off-road design to protect the filler neck from damage when off-camber.

To avoid confusion at the pump, most modern cars have a small arrow next to the fuel gauge icon on your dashboard. This arrow points to the side where the gas tank is located. It's a simple, universal feature that takes the guesswork out of pulling up to the pump.

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