That sodium shouldn't be there. This is the last generation of TGMO 0w20 (not the high-moly new one), but sodium is too high. Entered via the air filter maybe?
Originally Posted By: Shannow
Given the flashpoint and the viscosity, which clearly point to fuel dilution (not B$tone's strong point), I wouldn't head to 9,000 miles. Time after time, Blackstone are reporting no fuel, and have flashpoints and KVs at near the condemnation limits, which clearly indicates that the oil has significant fuel in it.
Not the problem you say it is. A little oxidation will set in on the way to 9k miles, increasing kv100 back upward. Fuel dilution is not bad here, since at this point in the oil's lifetime, a normal & expected amount of VII shearing drops kv100 by 0.5 to 1 cSt, seen a lot. Some fuel dilution is likely, but its probably 0.5 to 1% or so here, not bad at all.
Originally Posted By: Shannow
(like their acceptable viscosity ranges - aren't SAE J300 either)
J300 is for new fresh oil, not old used oil really. Engineers who desgin the bearings know there will be some viscosity changes, within reason, and that's why Blackstone goes a little outside J300. Normal business, not setting off any alarms at that level.