This winter when I was pushing snow around town, I would put the high/low lever in high and flip the console switch to high when I would travel down the street between houses, but it never got very much faster than when it was in low, not near as fast as it used to. I just have over 300 hours on it and plan to change all of the filters and fluids, but I was just wondering if there was something else that could be wrong that I would have to take it to the shop for, and they would have to drain my new fluids to fix it.