ngksp-0506-3_-_automotive_ethanol_fuel_en PDF

A service bulletin that addresses issues related to new ethanol blended fuels in the Canadian marketplace. It highlights an increase in fuel consumption and the activation of the service engine light due to a lean code. The bulletin provides solutions such as installing a spark plug with a heat rating cooler than OE and adjusting the spark plug gap to manage cylinder temperature. Additional information includes common scenarios where these issues are likely to occur, such as in fleet vehicles and modified engines.