Oil Additives Solid Cam??

Are you sure that Rotella T has a maximum of 800 ppm of phosphorus?

I was told by a "person" with Shell at the Scotford Refinery that the ZDDP package currently in all the Rotella T oils will be backed down to 800 PPM by the end of this year certainly by middle of 2010. All the refineries in Canada are playing the EPA follow the leader game in this case, to some degree it saves them a little money and they can take the ECO/Green high road. Also it is more so the Zinc part of the ZDDP package that the cam lobes depend on to form a microscopic coating in a flat tappet engine and this coating literally runs off the lobes when the engine is shutdown. You'll also notice that in those spec sheets you've highlighted they list the phosphorous as maximums or "limits", no where do they mention "minimum concentrations".

Terry