Serria is offering a oil that they call a replacement 2 stroke oil for Evinrude XD100 E-TEC oil. If your E-TEC is set to run the XD100 oil you must use XD100 oil and nothing else. BRP will not cover any engine under warranty that is set for XD100 and this Serria oil is found in the oil tank. Alot of marina's and marine stores are now selling this oil. If you want to use this oil you must have your dealer reset your oil use setting to TCW3 oils.