Okay, last week I changed the oil and filter, greased everything, filled it up with fuel and added fuel stabil. Ran it for 10 minutes and shut it down. I just get ready to put everything in a barn i use, and a customer calls and wants here lawn done one more time. Will it make any difference storage wise if I use the machine for 2 hours and then put it into storage (without changing the oil again). I know this seems silly...even as I write this but the machine is only 2 years old and I want to keep in great shape for a loooonggg time. Thanks EXMARK LAZER HP 23 HP KAWI with Syn Oil.