Patent ID: 6973909

Claim:
A system for an internal combustion engine ( 10 ) designed to be operated with a fuel mixed with a lubricant characterized in that it comprises: a detector ( 16 ) arranged to detect the presence of a specific additive in the lubricant mixed fuel, an electronic module ( 24 ) arranged to compare the detected presence of an additive with a given threshold value and designed so that; if the lubricant has not been mixed in the fuel or is mixed into the fuel, in an amount that is lower than an, via the additive against the threshold value correlated, amount, by means of an indicator ( 30 ) indicate a lack of lubricant in the fuel and/or with a connection ( 26 ) to an ignition system or an injection system ( 11 ) for the engine ( 10 ) prevent or change the operation of the internal combustion engine if such lack of lubricant is at hand in the fuel.