id say thats good.when i get into mine itll peg the gauge.although mine does only idle at 35-40.i bought mine with 400 miles on it ,07 6.0 ,all i did was throw a cam in it so idk y it only idles at 35-40.any way all my chevys ,and gmcs always run above 40.even with 140k on em.did you just do an oil change?60 seems high but i dont think you should be concerned.