I was pondering the place of group 3 syns in comparison to group 2+ dinos and group 4 syns. I think that if a group 3 is priced at or below $3/qt. its probably a good value. For less than $2/qt. I can get a good group 2+ dino (my choice for my vehicles) and for $4/ qt. ($20 for 5 qt. jug) I can get Mobil 1 which is a group 4. Does this make any sense?