Will unleaded plus gasoline damage your car?

No, unleaded plus gasoline will not damage your car. Unleaded plus gasoline has a higher octane rating than regular unleaded gasoline, which means that it is more resistant to knocking. Knocking is a sound that can occur when the air/fuel mixture in your engine ignites too early. It can damage your engine over time. Unleaded plus gasoline is also less likely to cause carbon deposits to build up on your engine's valves and injectors. These deposits can reduce your engine's performance and fuel economy. However, unleaded plus gasoline is more expensive than regular unleaded gasoline. So, if your car doesn't require unleaded plus gasoline, you don't need to use it.