Up until now I have been using Mobil 1 15W50 in my 1995 C280. With the advent of Mobil 1 0W40, I have considered switching to this viscosity but have been hesitant since it is not a recommended viscosity on the oil selection chart in my owners manual. From the label on the bottle it appears that the 0W40 conforms to a higher rating than 15W50 and would also be "energy saving."

Does Mercedes Benz recommend use of this oil in older MB's that do not prescribe this oil viscosity?