Originally Posted by diamondlandscaping
I believe most manuals call for 100 hrs on the oil and 200 on filter. I would go with that. You will hear guys who change every 40-50 hours, which IMO is a waste of money. Same as the guys who change motor oil at 3-K miles....
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Agree. Always go with the manufacturers recommendation. While I am not a professional lawn guy I have had over 30 years experience with engines as an engineer in design and operations. When the engine is designed they figure in a safety factor so if you change your oil AND filter as recommended you'll be good. Most importantly you won't void your warranty. If push comes to shove I'd rather skip an oil change than a filter change. It's the dirt that damages the moving parts and the filter is your only defense against dirt.