Be sure and check out the forum "Product Rebates, Sales and Promotions" for link to PDF printout webpage for $6 rebate on 3 gallons @ Advance ($15-$6=$9 for 12qts!).
-David (please to see Advance here in Houston finally!)
PS> I believe it is very comparable to Shell and Chevron 15W-40s. The Ci4 rating did it for me, these three oils happy live in my Norton, '61 Ranchero, and the wifes 5-series wagon in summertime (GC in cooler months).