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People 150 / Re: P150 Favorite Motor Oil
« on: December 10, 2010, 04:14:50 PM »
I'm with you totally on oil changes especially on the smaller 50cc scooters that run around with the throttles wide open all the time. But I have read that, on motorcycles that use the same engine oil in the trans, that oil break down due to the trans gears squeezing and "shearing" the oil is a factor.And that it may tend to lower the oil viscosity over time.The other thing is that most motorcycles (especially the Japanese bikes) also use the engine oil to lube and cool the clutch disks.The oil can get some contamination from disk materials.Scooters with CVT transmissions run all the componts dry.
Like I said, I'll figure on oil changes at 1000 miles when my break in is over. Harley-Davidson suggests engine oil changes at 5000 mile intervals.But they use a second oil for the primary drive and clutch, and yet a third for the trans.5000 seems too long to me and I do my Sportster at 2500 mile intervals.
Like I said, I'll figure on oil changes at 1000 miles when my break in is over. Harley-Davidson suggests engine oil changes at 5000 mile intervals.But they use a second oil for the primary drive and clutch, and yet a third for the trans.5000 seems too long to me and I do my Sportster at 2500 mile intervals.