The last 5qt jug of Castrol GTX I bought was only about .50 cents more than a 5qt jug of Quaker State GB.
The price shot up more than $5 shortly after that.
I chose the GTX over the Quaker State because of my long running history with GTX. But there is no way in [heck] I believe that GTX is $5.00 better than QSGB. IMHO, Quaker State is probably the same base stock as Pennzoil Yellow Bottle and 90% of the ad-packs. That to me would be a pretty [darn] good oil.
So if the BP social media people are monitoring this, you just lost a customer and any word of mouth I may have provided with your HUGE overnight price increase. If the SOPUS social media people are monitoring this, keep on doing just what you are doing.