CAUTION WHEN CHOOSING OIL

[flynrider]

Flynrider Wrote:
Update : I got the test results back from Blackstone and the news was good. After running all summer (and fall) in some pretty ugly temps, 3600 miles total, the switch to synthetic Rotella did the trick. The viscosity reading in the report was actually higher than expected. Much better than my results with the dino version.

What did the viscosity @100c burn down to?
[/quote]
Hey Ack,

The cSt Viscosity @ 100C came out at 17.6. Blackstone's expected average for the sample was 11.6 - 15.3. Some of that can be attributed to make-up oil that was added at 2500 miles, but overall it's still pretty good.

By comparison the dino Rotella that I ran and tested a few summers back came out at 7.0 after 3K miles of summer riding. Samples for cooler months were in the normal range, so I surmised that the heat was having a significant effect on the viscosity break down.