#1.ACDelco 12F20L Locking Fuel Tank Cap
We think the ACDelco 12F20L is the best locking gas cap because it has great durability and excellent lock strength. It is incredibly hard to pick and fits a wide variety of car models.
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Best Locking Gas Cap
- #1.ACDelco 12F20L Locking Fuel Tank Cap
- #2.Stant 10502 Locking Fuel Cap
- #3.Gates 31836 Fuel Tank Cap
- #4.Motorad MGC-795 Locking Fuel Cap
- #5.CST 5907 Locking Fuel Cap
#1.ACDelco 12F20L Locking Fuel Tank Cap
The ACDelco 12F20L is the best-locking gas cap for your fuel tank because it has a premium threaded cap that seals your vehicle’s fuel tank filler better than the others and is 100% theft-proof. We like the fact that it fits a wide variety of makes and models. This kind of versatility can’t be found in other locking gas caps.
Additionally, the lock comes with two sets of keys in case you accidentally lose one and need access to your fuel tank. The lock itself is very hard to pick and is definitely made of professional quality. Finally, just note that AC Delco makes incredibly durable aftermarket parts and is definitely a brand you can rely on.
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#2. Stant 10502 Locking Fuel Cap
The Stant 10502 Locking Fuel Cap is the best locking fuel cap because it is known to form a very tight seal over your fuel tank. Your stock fuel cap may wear down over time and leak fuel. With this fuel cap, you can save up to a gallon of gas every 15 days which basically pays for itself in 3 months.
Not only does this locking fuel cap meet professional performance and safety standards but also it can protect your fuel tank from theft and vandalism. Finally, just know that you have peace of mind in any accident. A properly sealed gas tank will prevent vapors from igniting by a random spark or flame.
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#3.Gates 31836 Fuel Tank Cap
We really like the Gates 31836 Fuel Tank Cap because it comes with two square keys, which makes it very easy to twist. All you have to do to make sure that it is properly closed is to turn the gas cap to the right until it clicks.
We generally found this gas cap to be very easy to install and operate. It fits many car models and you can make a very tight seal without using too much force. Overall, both locking and unlocking are a breeze and the keys are quite sturdy and reliable.
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#4.Motorad MGC-795 Locking Fuel Cap
If you want a locking fuel cap that passes all state and federal emissions tests, the Motorad MGC-795 is the way to go. This locking gas cap does a decent job of protecting your vehicle from theft and vandalism. It is pretty easy to install and has a universal fit.
We like the fact that it reduces air pollution with proper sealing and venting. Also, it is independently tested for emission control. Finally, just know that the primary reason why you should buy this to replace your stock fuel cap is to make sure that the cap is properly covering the gas tank to prevent evaporation.
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#5.CST 5907 Locking Fuel Cap
The CST 5907 is a great locking fuel cap as long as you get used to the locking mechanism. It takes two hands, one to stabilize the cap and the other to lock it in place. Additionally, the parts are all superb quality and used OEM quality materials and construction. It fits most cars.
We found this locking gas cap on par with the others we tried and really couldn’t find a feature that made it more annoying than the others. Overall, this is pretty cheap and a very reliable way to seal your gas tank.
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References
https://www.motoradusa.com/blog-should-you-buy-a-locking-fuel-cap.aspx
https://www.fueloyal.com/learn-benefits-fuel-cap/
