I've been using Blue Marble in 3 of my 5 Skidoos for 4 years now, I tend to believe their claims about what it will do, Snowtech magazine tested Blue Marble and they found that all other things equal it gave 10% better fuel economy (because of reduced friction), emissions were reduced, Rave valves had less deposits, and after 2 or 3 tanks of fuel there was a noticeable increase in performance. My 02 700 has had Blue Marble since new, after 2000 miles there are zero carbon deposits on the Rave valves and the tops of the pistons are clean and shiny and there are no exhaust stains on the belly pan, I am very satisfied with it. My other 2 sleds are lower HP motors and I am using Injex in them with excellent results also, the 94 583 has about 8000 miles on it and has only lost 1# of compression since new. A couple years ago I told the local performance shop about Blue Marble and he is now a firm believer and sells more Blue Marble than anything else.
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