Went to Wal-Mart today and noticed they had some good sales going. They had QS HP in all weights for $13 and Val Syn in all weights for $13 too which is a steal!! They had a lot of high mileage oils for $9 but I forgot to check maxlife. I don't use syn, but at this price I bought some Val Synpower jugs in 5w-30 and put it in my car today. I guess I will run this to 7.5k since I run dino to 5k. I didn't notice any difference in engine sound from dino to syn...but I did notice the oil is MUCH lighter than dino oil!