Three Years of Blackstone Labs oil analysis

Just received back my third year of Blackstone oil analysis back for my '01S... thought you data junkies might find it interesting, see attached. Sure, I don't drive the car enough (3rd car/off the road in winters/kids), but it's nice to see that things are stable from a metallurgical aspect. Here's hoping that any pending interrnal / IM* issues might reveal themselves in the oil first, but after 10 years it's just nice to see that things are in great shape. FWIW, I change the oil every fall before storage, despite the report's recommendation to the contrary. Blackstone seem like good people too (no affiliation other than a happy customer).

- JohnL
Boston

By the looks of the calcium reading, your Boxster's been drinking a LOT of milk when no one's looking.

I use Blackstone also and the report looks very good from a wear standpoint.
If there is anything that looks less than stellar, it's the 100deg C viscosity--11.6; that seems low to the point where it's just about a 30W oil.
IIRC,brand new M1 0W-40 i has a 100deg C viscosity rating at about 14; that a pretty sizable drop in 1600 miles.

So, i agree that its low, but i also think its typical. This illustrates one reason to change oil earlier if you plan to use it where a hgih viscosity is required - say on the track.

For most street use, under most weather, it likely doesn't matter anyway.

Grant

Grant

gee-lenahan-at-gee-mail-dot-com

It's not unheard of to see a fair bit of shear-down in fast European cars.

For example:

Roger:
Now that is my kind of shear..

But can she work on, not in, a car?




"A mile of highway will take you one mile. A mile of runway will take you anywhere."

Minus 40 degrees... Is that Fahrenheit or Celsius?

Good numbers. Mine are reading right about where yours are with M1 at around 3k OCIs and 131k miles on the clock.