I stopped by yesterday and here is what I found:
Valvoline conventional $15 a jug (!!!)
Maxlife $17 a jug
GTX $14.50 a jug
Quaker State $12 a jug
Motorcraft $12.50 a jug
Havoline $12.50 a jug
Pennzoil conventional $14 a jug
ST Dino $11 a jug
Mobil 5000 $11 a jug
Valvoline conventional $15 a jug (!!!)
Maxlife $17 a jug
GTX $14.50 a jug
Quaker State $12 a jug
Motorcraft $12.50 a jug
Havoline $12.50 a jug
Pennzoil conventional $14 a jug
ST Dino $11 a jug
Mobil 5000 $11 a jug