The "S" is for standard. They make/made an "extra duty" filter that is/was yellow, but has same external dimensions. If you change oil at the recommended intervals the standard filter should be fine. Changing the air filter is also VERY important to long engine life as well as the fuel filter at recommended intervals. Our 2013 42" has been great. Only had to replace a blade that bent hitting something.
The "S" is for standard. They make/made an "extra duty" filter that is/was yellow, but has same external dimensions. If you change oil at the recommended intervals the standard filter should be fine. Changing the air filter is also VERY important to long engine life as well as the fuel filter at recommended intervals. Our 2013 42" has been great. Only had to replace a blade that bent hitting something.
Thanks!
Now I know the rest of the story...thanks!