The use of contaminated gasoline, seasonal fuel changes (summer/winter fuel) or gasoline with a low content of deposit control additives may result in one or more of the following conditions:
-Excessive accumulation of deposits on intake valves, intake manifold, fuel injectors and combustion chambers.
-Engine runs rough after cold start.
-Excessive engine cranking time.
-Stumbles while driving.
-Rough engine idle.
-Loss of engine performance.
-Poor fuel economy.
This document informs of the procedure for the vehicle if it is diagnoised with poor quality gas