Howdy! I was having boiling problems on low speed single track. After reading all of the posts on the subject I switched to Evans NPG+. Today we spent 9 hours of deep sand single track, climbing from 2000ft. to 6000ft. and not once did my bike act like it was hot. After one long hill i left it idling while we took a water break for about 15 min. It was 102 F. at the time and the engine stayed cool. Well cooler than it did last week with normal Honda coolant. Im sold. The stuff works as advertised. P.S. Pay close attention to the o-ring on the oil pump/filter cover. when I changed the filter and oil I left a little tiny small speck of sand on the o-ring. Drove me nuts trying to figure out why the cover was leaking.