Does anyone see any reason not to run this oil in the 23hp Kohler v-twin on my new Cub Cadet garden tractor? I noticed the engine runs pretty warm even on cool days. I added a Kohler factory oil cooler to the engine but I really don't know how much effect it had. Judging by the temperature of the oil cooler, the oil is still plenty warm.
The factory recommends 10W-30 down to 0°F and 5W-30 for lower temps but says nothing about using heavier oil when it's warmer. Anyone think the 5W-40 would cause any problems or show greater wear?
The factory recommends 10W-30 down to 0°F and 5W-30 for lower temps but says nothing about using heavier oil when it's warmer. Anyone think the 5W-40 would cause any problems or show greater wear?