High detergent &/or low silicone oils could aggravate an oil foaming problem for the M96. I suggest you need some independent advice on oil selection - for example Bob is the Oil Guy forum.I am not qualified to knock the DT40.
You may find this interesting since it mentions Mobil 1.?
Hunt to find the best possible oil.
and BTW the expert (not me!) suggests using Caterpillar for UOA not Blackstone - and changing oil more frequently than once/yr.
http://www.empire-cat.com/Parts_and_Services/Service/S_O_S_Fluids_Lab/Engine_Oil_Analysis___Testing.aspx