HPL PCMO 5w-30

[Toyotech454]

This is the first sample of HPL in my/my wife's 4Runner. Previous two fills were Penzoil Ultra Platinum 5w-30. This vehicle has received mostly 5000 mile changes with store bought synthetics (PUP, Mobil 1 0w40, Castrol edge etc...) since 10,000 miles when we purchased it. I did a "short" interval in case any cleaning occured, and to set a baseline for analysis, the goal is to do 10,0
00 mile intervals with HPL. Absolutely nothing showed up in the filter, like previous oil changes, which was nice to see.

The vehicle sees mixed usage, plenty is typical in-town/ highway driving. We reside in a city, so the vehicle does see some short trips where it does not reach operating temperature. It gets used for ski trip duty up steep canyons in cold temperatures, and also sees extended periods of 80+ mph longer trips loaded with camping gear, as well as plenty of time in low range off-road in rocky/dusty desert and high desert environments. I would consider the use of this vehicle on the severe end of things, durability and off-road capability were primary concerns when we purchased it.

 

[Klutch9]

Held its grade pretty well.

 

[SubieRubyRoo]

I love HPL, and I’m certainly not going to dissuade you from its use, but your 4Runner is certainly not in need of an HPL-caliber oil for 10k use. IMO, do an in-service sample at 10k (I.e. don’t change it before sample results come back), and sample again every 5k til it’s either out of grade or TBN < 2, or TBN < TAN. If you’re paying for the premium stuff, you may as well maximize its benefits!

 

[Impatient]

I’m totally surprised your PUP tests stayed in grade…in fact may have thickened relative to VOA, which I thought was under 10.0.