I've got a zero turn mower with a Kawasaki 25HP FH721V vertical shaft 4 cycle air cooled engine.
Kawi basically recommends 30 weight or 10W30. The mechanics tell me that they motors do best on 30 weight. So far I've only got 8 hours on the unit but I have changed the oil 3 times with 30HD (Havoline).
Two questions:
1) How many hours should I put on this motor before switching to synthetic
2) Which one of the following would you use. I have a pretty good supply of all of them
- Delvac/T-SUV 5W40
- Castrol GC 0W30
- Mobil 1 10W30 (older Super Syn formula)
or should I just stick with
- Havoline 30HD or Trop Artic 10W30
Decisions, decision! I'm not trying to extend my OCI (at 2 quarts with the filter the money isn't an issue) but rather make sure the motor is well protected.
Kawi basically recommends 30 weight or 10W30. The mechanics tell me that they motors do best on 30 weight. So far I've only got 8 hours on the unit but I have changed the oil 3 times with 30HD (Havoline).
Two questions:
1) How many hours should I put on this motor before switching to synthetic
2) Which one of the following would you use. I have a pretty good supply of all of them
- Delvac/T-SUV 5W40
- Castrol GC 0W30
- Mobil 1 10W30 (older Super Syn formula)
or should I just stick with
- Havoline 30HD or Trop Artic 10W30
Decisions, decision! I'm not trying to extend my OCI (at 2 quarts with the filter the money isn't an issue) but rather make sure the motor is well protected.