Why are Gas Tanks Located on Different Sides in Various Cars?

station. A Small Design Choice With a Bigger Explanation The next time you see one car with a fuel door on the left and another with it on the right, it isn’t necessarily the result of an arbitrary decision. Behind that little flap is a carefully designed system involving the fuel tank, filler neck, body structure, exhaust, suspension, crash protection, emissions equipment, and manufacturing requirements. In other words, the fuel door goes where the overall vehicle design allows it to work effectively. And if you’re ever unsure which side your own fuel door is on, take a quick look at