In my last trip in the US I picked up 2 jugs of SS 10w30.I was thinking to use them even in winter since it pours close to the 5w30. Latest analisys shown that the SS 5w30 doesn't thin out like the TrySyn did so my strategy seem pointless now.I have no problem to use it in my wife's 140000k Integra,but not so sure for my 11000k Prelude. 5w30 is recommended for both. Any reasons not to use it in the Prelude? Another concern of mine is if I got the one with moly or not.On this one I guess noone can answer! At work I use some moly lubricant maybe I could just add a little.