Hey guys, I picked up a '15 STX that only had a few miles on it and finished the season with a grand total of 295 miles on it, so I guess it is still in the break-in period. The manual says to do the first oil change and chain case oil at 500 miles. Should I change the oils now since they have been in the sled since '15 or should I wait until I put 500 miles on it until some point next season? Not sure if the oils break down over time or not... Thanks in advance.