Effectiveness: Dry gas is specifically formulated to absorb and remove moisture from fuel, whereas rubbing alcohol may not be as effective in doing so. Dry gas contains additives that are designed to dissolve and disperse water molecules, while rubbing alcohol may only temporarily displace the water but not completely eliminate it.
Compatibility: Dry gas is compatible with gasoline and does not affect its properties or performance. Rubbing alcohol, on the other hand, can have a negative impact on fuel quality and potentially lead to engine issues. It is not recommended for long-term use or as a regular additive to fuel.
Safety: Rubbing alcohol is flammable and should be handled with caution. It should not be stored or used near open flames or sources of heat. Dry gas, on the other hand, is relatively safe to use and is specifically designed for automotive applications.
Therefore, while rubbing alcohol can be used in an emergency to address moisture in a car's fuel system, it is not a suitable or effective replacement for dry gas. It is advisable to use dry gas as recommended by the vehicle manufacturer or consult with a qualified mechanic for appropriate solutions to prevent moisture issues in your car's fuel system.