The yellow engine light came on again!So,i am going to drain the reservoir tank from the gas,which is mixed with water or diesel.We pay 1,20 euros per littre for the 100 octane gas and the gas stations mix it with water!!They are going to destroy the engine .Do you have such problems with mixed gas in the US?I am certain you dont because you have laws you abide in.If you ever consider visiting Greece with your car reconsider it.