Ethanol has a higher octane rating than gasoline, which means it burns hotter. This can cause problems for older engines that were not designed to handle higher temperatures. The increased heat can damage engine components, such as the pistons and valves.
Ethanol can also cause problems with fuel lines and other rubber or plastic components in your car's fuel system. Ethanol can degrade these components, causing them to crack or leak.
If you are concerned about the effects of ethanol gas on your 2002 ZX2, you should talk to your mechanic. They can help you determine if your car is compatible with ethanol gas and recommend ways to protect your fuel system.
