Should I take the nail out of my tire before using Fix-a-Flat?

When it comes to using Fix-a-Flat or any similar tire sealant, it is generally recommended to leave the nail or object in the tire until you can properly repair or replace it. This may seem counterintuitive, but there are a few reasons why it is advised to leave the nail in.

Firstly, if you remove the nail before using the sealant, you risk losing air rapidly and potentially causing further damage to the tire. The nail is acting as a temporary plug, preventing air from escaping too quickly. By removing it, you could create a larger hole or even damage the sidewall of the tire.

Secondly, Fix-a-Flat and similar products work by sealing the puncture from the inside. They contain a combination of sealant and compressed air, which is injected into the tire through the valve stem. The sealant then coats the inner surface of the tire, sealing the puncture and allowing you to drive a short distance to a repair facility.

If you remove the nail before using Fix-a-Flat, the sealant may not be able to effectively seal the puncture. The product needs to come into contact with the source of the leak to work properly. By leaving the nail in, you ensure that the sealant has a direct path to the puncture, increasing the chances of a successful repair.

It is important to note that Fix-a-Flat is not a permanent solution and should only be used as a temporary fix to get you to a repair shop. It is not meant to replace a proper tire repair or replacement. Once you have used the sealant, it is essential to have the tire inspected and repaired by a professional as soon as possible.

In some cases, the puncture may be too large or in an unsuitable location for the sealant to effectively work. In these situations, it is best to contact roadside assistance or a professional tire service to have the tire changed or repaired properly.