Use the stuff that came with it.
I will do just fine.*
*Unless you are hardcore overclocking and need every degree that you can get.
Exactly, wheres the idiot thats been arguing with me that 2c is not worth worrying about. If your serious overclocker, 2c is huge!
No, if you're a reckless overclocker, you would have only left 2C margin. Anyone else won't benefit from 2C nearly as much as they would the longevity of the synthetic base stock in some greases like Arctic Alumina, Silver, and other brands.
Even then, it's far less important on today's die with head spreaders on them to decrease the thermal density.
Funny how I and many others have been able to o'c fine without worrying about 2C. You seem to have more trouble and this is some advanced insight? Hardly. Maybe you can squeeze a couple dozen MHz more out of a 3+Ghz chip, woohoo for you. You can't keep it though, with margins that thin you will have problems sooner or later.
When you have to go through a lot of bullsh!t just to get a speed you can't even maintain for the life of the system (10 years?), it's nothing but a hobby. Set-it-and-forget-it is a successful overclock, I've been where you are and tried the fancy greases. I bought AS5 too, and I do use it merely because I might as well since it's sitting there, but to buy it pretending 2C is important for some elite overclocker? Sorry but it's the last thing that matters and in many cases you won't even get 2C difference, unless you were only contrasting with a poor alternative grease or as I wrote previously, you had two terribly interfacing parts in which case the problem isn't the grease it's the crap parts' surface and we know how to fix that.