We use Kohler 30W in most engines unless they have a specific requirement. Our heat index was 104° yesterday so we are well acquainted with high operating temps.
The hydros should be serviced by the dealer with the first service @ 250 hours, then every 500 hours.
eXmark dealer since 1994
Kohler expert dealer
Last edited by Oldtimer; 06-29-2013 at 12:08 PM.