Yep... same here. There is no T6 15w40 to be found. In my travels, I have been walking into WalMart's across the western US and there is none to be found. In most cases, there is no slot on the shelves. When I can speak with an associate, they nearly always give me the line... "We don't know what the trucks are going to bring us."
So maybe Shell did a market, experimental run of a few thousand gallons nation-wide to see if it was an oil that consumers would purchase. And maybe, they are ramping up production with the quick 'sell out of inventory'?????????
On another note......
Does Shell really need three versions of 15w40? I wonder if they are considering phasing out T5..... only keeping T4 and T6... ????
Motorcyclists are a tiny percentage of the Rotella consumer group, but I am sure everyone would vote to have JASO spec'd T6, rather than Non-JASO T5.
And for that matter, I just can't believe Shell would go to the trouble to JASO spec T6 15w40 if they didn't have long terms plans for it.
.........