What typically requires adjustments to maximize vehicle performance in CNG engines?

Maximizing vehicle performance in CNG engines typically involves adjustments to the air-fuel mixture and engine temperatures. The air-fuel mixture is crucial because it directly affects combustion efficiency. CNG, being a different fuel type compared to gasoline or diesel, requires precise tuning to ensure that the right amount of air is mixed with the fuel for optimal combustion. If the mixture is too rich or too lean, it can lead to performance issues such as reduced power output or increased emissions.

Additionally, engine temperatures play a significant role in performance. CNG engines often operate at different temperatures compared to traditional fuels, and maintaining optimal engine temperatures helps prevent knocking and improves overall efficiency. This makes the air-fuel mixture and engine temperature adjustments essential for achieving the best performance in CNG vehicles.