Gasoline can't be made "inert" in the sense of being completely non-reactive. However, there are a few things that can make it less reactive and thus less likely to ignite or explode:

* Inerting with nitrogen: This is a common industrial practice for minimizing the risk of fire and explosions. Nitrogen gas is introduced into a container or area where gasoline is stored or handled, displacing the oxygen that is necessary for combustion.

* Adding stabilizers: Gasoline is a complex mixture of hydrocarbons. Some components are more volatile and prone to oxidation, which can lead to gum formation and other problems. Stabilizers are additives that slow down these reactions, making the gasoline more stable over time.

* Using a low-vapor-pressure gasoline: Gasoline with a lower vapor pressure will evaporate more slowly, reducing the amount of flammable vapor in the air. This is often used in aviation fuels to minimize the risk of explosions.

It's important to note:

* Inerting is not a guarantee of safety. Even inerted gasoline can still be flammable, and it's important to handle it with care.

* Spilled gasoline is a serious fire hazard. It is important to follow proper safety procedures when handling gasoline, and to have a plan in place in case of a spill.

Instead of trying to make gasoline inert, it's best to focus on preventing spills and fires in the first place.