A mechanic has suggested that I add motor oil or used motor oil in the fuel to improve the engine’s
This suggestion was common with older vehicles as oil was believed to improve combustion by ‘lubricating’ the piston rings of the engine. However, oil combustion impedes engine performance and causes malfunctions in other components, which is why adding oil to the fuel is by no means recommended; especially not in newer vehicles, whose injectors and sensors are sensitive to impurities. Jugopetrol diesel fuel has already been conditioned at the refinery to contain all the necessary components for reliable engine operation.