Originally Posted By: daves87rs
Unless you plan to go crazy in a very high tech engine for a long period of time...
What does this mean?
If spec'd for your car and you're using appropriate oci, engine tech means nothing.
If "going crazy" means using an oil outside it's performance scope, your comment could be applied to every oil.
The premise here concerns mixing two very different add pkg where the brands packaging is indistinguishable. In some early cases, not even labled "dexos1Gen2". From a non-bitog, avg consumer's point of view, there is no difference. My assertion is that if there were a mixing issue, the manufacturer, blender would label it as such. And being a dexos certied product, this even applies to oils designed for extreme low temps.
I know Shannow has posted an instance where under extremely cold temps a breakdown of mixed oils occurred (specifics of what was mixed is unknown). Not sure this still holds true and the switch fron d1 to d1G2 bears this out.