I noticed that this store has Energy Conserving
written in the API donut on the back of their
10w-40, 20w-50, and 5w-50 motor oils. These oils
are probably not energy conserving types, since
that is normally achieved only by the xw-30's and
Mobil 1 0w-40. I thought the API symbols were
trademarks, and had to be used correctly.
Have any of you noticed this at your local stores?