Valvoline R&P 5w-30, 6.8k mi, 2007 Lexus RX400h, 169k mi

[74DartSport]

Switched from Kirkland 5w-30, still seems awful rough on the viscosity.
Refilled with R&P, next report I might switch to Polaris.

 

[Hirev]

The moly and boron seem low and off from other UOA i've looked at for valvoline R&P. Was there some make up oil in the mix?

 

[himemsys]

The moly and boron seem low and off from other UOA i've looked at for valvoline R&P. Was there some make up oil in the mix?

Keep in mind:
1. Boron depletes with use.
2. the previous fills all had ~70ppm moly, so carryover from previous OCI has affected this result.

 

[RDY4WAR]

I think it's unlikely this oil sheared >2 cSt from virgin. Even if Kirkland sheared substantially and had a lot of carryover, oxidative thickening would likely cancel that out by 6,800 miles. Either their WAG of <0.5% fuel is wrong or the KV100 is wrong. Blackstone is notoriously inaccurate on both parameters. I'd have them rerun it.

 

[fantastic]

Results look great for an almost 7k run. I think you've gotten the universal averages from BS so switching to Polaris is a good choice. Does it show how many miles used on the hybrid batteries? Your RX400H Lexus is piling on some miles at 24k in a little over a year.