Quote:
Originally Posted by detours
I'm a believer in synthetic oil, though some may see it as a waste of money.
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I'm also a believer in synthetics, but only where synthetics are necessary or of actual benefit. I've switched to synthetics in small horizontal engines, where finding neutral was a bear. In my CG engines, conventional Rotella does a great job, so I've found no reason to switch.
When I used synthetic oil in my old (and worn out) XR250R, it killed mosquitoes for miles. When I used conventional Rotella in it, the engine burned oil at a much slower rate. Not sure why that would be.
Your wife's bike is quite healthy, and as such you're seeing different results even among synthetics. The fact that her mileage has increased and shifting has improved by switching from Rotella T6 to Mobil 1 is excellent testimony. Those results may or may not transfer to another bike.
This is a fascinating thread.