Okay so the owners manual gives you three indicators as to when to change the engine oil. Miles, hours, or Months whichever comes first. My question is how important is the Months variable when talking about this subject. I would think it would matter little in most cases within reason. For some people, they will reach the Months factor way before they reach the Hours or Mileage needed for an oil change due to small amounts of riding. I would also think that going by Mileage or Hours would be more important than going by Months as that is actual wear and breakdown of the oil going on due to the engine actually running. If the machine sits idle a lot of the time i can't see how the integrity of the oil would be any worse than the day you put it into the machine thus making me think that Months has little effect on when the oil needs to be replaced. Hope that i am being clear ha I'm trying to be. So what do you oil experts think about the Months variable and how much it matters on the frequency at which you replace the oil. Not asking about mileage or hours on the engine oil and replacement of it, just Months and if it matters that much. Now obviously I would not leave the same oil in my engine say like for example 2 years without replacing it waiting on the machine to hit a certain mileage or hour amount.