For years I've been using whatever the current flavor was of the MA rated Rotella dino, put it in everything. Over the years various versions have been discontinued and replaced with new names. The current dino is T4 Triple Protection 15w-40 and I still have a few gallons of it, on sale it works out to less than $3/qt.
BUT... Tractor Supply now has 2.5 gals of Synthetic T6 5w-40 on sale for $44 and Shell tops it with a $17.50 rebate for each. That brings the cost down to $2.65/qt.+tax. I bought (2) 2.5 gal jugs, each a separate purchase with 2 receipts and mailed in 2 rebate forms. Allowed 2 rebates per household.
05 1300R -sadly sold 04 BMW K1200LT - Luxury Tourer, smooth efficient quiet power,sporty mile eater 05 BMW F650GS - rugged and elegant adventure tourer, does it all well, high speedcruising to rough dirt roads IBA: SS1000,SS2000, SS3000, BBG1500, 50CC, UCC, LGL1000, 4 Corners