Which risk increases when using water-methanol injection without proper engine tuning in a turbocharged engine?

💡 Explanation

When water-methanol injection is used without proper tuning, lean spikes can occur because the ECU isn't optimized to compensate adding supplementary and highly volatile fuel, inducing uncontrolled pre-ignition events causing knock. Therefore knock risk increases, rather than increased EGT, turbo failure, or clogged injectors which depend on very different fuel control parameters.

• Which risk increases when turbine blades experience extreme centrifugal forces while operating?
• Which performance issue indicates a wastegate malfunction causing excessive turbocharger boost?
• Which outcome arises due to sustained loading on a pre-stressed concrete beam close to its design limit?
• Which outcome results when a spool valve in a hydrostatic transmission system experiences significant wear?
• Which outcome occurs when reactive power demand far outweighs a power grid's surge impedance loading?
• Which impairment results when signal processing inadequately equalizes channel dispersion in fiber optic communication?