Why's it great?

Amsoil is the best you can get basically and it's what I put in my ITR.

Mobil 1 is also a great synthetic but as mentioned, there are issues with some people burning it off.

Dino? Hey, the dino is great stuff too...change it every 3k and I think you'll be fine. I just can't do that....call me super anal....I don't know why....I got 246k on my beater, a 91 Accord and it's seen Valvoline dino it's whole life...it runs like a dream and when I had the valve cover off, there was no sludge or wear...unbelieveable....changed every 3k by the original owner and every 2500 since I got it with 242k on it.

Nothing wrong with dino...it's great stuff too! 8)