I don't see the Mobil Super Synthetic discussed on here very much. I suppose that is because it's mostly on sold at auto parts stores with the usual parts store high price. I use up all available M1 rebates already for another vehicle. The Pennzoil rebate isn't really worth it anymore with the recent price increase. Quaker State Ultimate Durability and Magnatec are about $19-20 at Walmart stores or online so why bother with Pennzoil rebate. Today I noticed the somewhat rare Mobil Super Synthetic at Rural King for $19. It should be good enough for 5-7 k OCIs in our Honda CRV grocery go-getter short-tripper. Any Super Synthetic fans out there?