
As they told you, the color does not indicate anything, yes, the viscosity, and if the oil is sticky, that is, a drop between the index and big toes, when separated, if it makes a long thread, it is no longer oil. if mixed with gasoline, stop lubricating, and so on, therefore, respecting the times of change indicated by the manufacturers is the best, for synthetics, 12,000 km or its equivalent, for semi-synthetic, maximum 10,000 km and minerals max. 5000. and everything is fine. luck