Finding Durablend is the hard part, getting it at a decent price is a win IMO. That comes out to $16.50 for 5 quarts, comparable to Dexos blends in jugs at Wally's. And you won't find Durablend at any Wally's around here anyway.
2004 Jeep GC WJ 4.0 @ 125k Castrol 5w40 w/ MMO
KIA Sedona 43k, Chevy Lumina 175k, Chrysler Sebring 175k, Chrysler Concorde 102k