Quote:
Originally Posted by Caddyshk
It was reported somewhere that TWS measures at a 50w under operating temperature.
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I have read that also. I also looked at MANY oil analysis sheets that members have posted on the many forums. Those sheets also say that TWS 10W60 shears down to a 50 weight. I have also read that it does viscosity change in the first 50-100 miles, but have no data to back that up.
I still like then data sheet numbers on Redline 15W50 better than TWS and that is one, but not the only reason I use it.