FREQUENTLY Asked QUESTIONS - Fuel Caps
- Why do I need to replace my fuel cap?
- Can I get extra keys for my locking cap?
- Can I get 2 or more locking caps that use the same key?
- What is a "pre-release" or Pre-Vent fuel cap?
- Are fuel caps for today's cars vented?
Why do I need to replace my fuel cap?
If your cap has failed an emission test, is missing, the crown is cracked or bent or the seal or gasket is cracked or worn, you need a new gas cap. If your cap is over seven years old, chances are you need one as well. The Car Care Council estimates that one of six cars is in need of a gas cap.
Many states require an annual emissions test. A test of the fuel cap is part of those tests.
Stant manufactures a fuel cap tester. Ask your mechanic to test your cap for you.
According to Sun Oil Company research, a vehicle with a missing or inoperative fuel cap will allow 176 pounds (22 gallons) of gasoline to evaporate over the period of one year. With the price of gasoline at about $3.00 per gallon, a new gas cap will pay for itself very quickly.
Can I get extra keys for my locking cap?
Yes. It's easy to order additional keys by calling Stant customer service at 800-822-3121 ext 58330. Please have the lock code that is found on the key or the lock handy when you call. There is a nominal charge for extra keys.
Can I get 2 or more locking caps that use the same key?
Yes, keyed-alike locking fuel caps for multi-tanked vehicles or two car families are available from Stant. Look up the applications in a catalog at your favorite Stant retailer. Simply change the first two digits of the 5-digit Stant part number from 10xxx (for a boxed cap) or 11xxx (for a carded cap) to 17xxx (for a keyed-alike cap). Your Stant retailer can then special order the caps for you.
What is a "pre-release" or Pre-Vent fuel cap?
Some Stant fuel caps have a "Pre-Vent" feature. These caps are designed to allow the controlled release of any pressure that may have built up in the fuel tank, so the tank is de-pressurized before the sealing gasket is lifted from the filler neck. This dramatically reduces the possibility of any fuel expulsion from the tank to your hands or clothing.
Are fuel caps for today's cars vented?
Fuel caps have not been fully vented since the 1960's. Modern fuel caps typically have valves that relieve positive and/or negative pressure once it reaches a certain level.