Just stumbled on a super good deal while looking at specs. I wasn't shopping for oil, since I already had enough for the next few changes, but I just couldn't pass this one up! I picked up two 2.5 gal jugs, and two 1 gal jugs of Delvac 15w-40 for cheap at Walmart, and got $28 back! This worked out to $10.06 per gallon!