Originally Posted by kschachn
For the vast majority of UOA posted on here no one knows whether a viscosity deviation is due to mechanical shear or fuel dilution. A Blackstone type analysis cannot distinguish between the two, and they can't reliably measure fuel dilution with their method. So a lot of the comments about the VII shearing cannot be substantiated.
Here in the next few weeks I'll be posting my RGT Polaris UOA from my 3.5 EB, which should be full of shear and fuel dilution ...‚