Apologies for the lack of updates, here are two recent UOA's. The HR is still burning oil at higher OCI, to the tune of about 0.5 quart added at the 7-8k intervals, then draining usually about 4qts during the oil change and filling up again with 5qts.

On these two most recent reports, i did not add make-up oil and decided to test out how good the Mobil 1 is against the Castrol. It's very unscientific so make of it what you want. Personally, i think either oil works well. In this latest oil change i continued with the Castrol to further test it.

November 2012 - Mobil 1 EP
Disregard the mention of DE, it's a typo for sure.



June 2013 - Castrol Syntec




------------------ Old reports below, most and those i have not posted were all on Mobil 1 EP --------------------
Another UOA done, still with Mobil 1 Extended Performance 5w30 with M1 EP M1-110 filter.

A little background, before i went to an HPDE i noticed the vehicle was running a little low on oil, so i added .25 quart for insurance. I think i either made a mistake from the last change (not enough oil going in) or i overlooked the amount i actually drained, thus the mention of "burning oil" (about half a quart lower than i normally drain). That was the first time it happened, but i will monitor this for future UOA's.

FTR, i think this oil is excellent for the HR, this is not the first time i've done extended drains and hitting the track later on in the oil's life.




----- older post below -----

Just wanted to update the thread with a newer UOA.



----- older post below -----

Just wanted to share the results of my most recent UOA. But first, a little background.

Bought the car used with roughly 14k and have used the dealership for a couple of oil changes.

I started doing it again on my own at the 27+k mark, and used Pennzoil Platinum (first time i strayed from Amsoil/M1 in any vehicle.), based on results from other users.

I wasn't completely happy with the results, mainly due to high sodium (which could have been from dealership oil). Not wanting to go further i switched back to Mobil 1 Extended Performance for all succeeding changes, along with the Mobil 1 M1-110 EP filter.

I had a couple of track days between the 8/9 and 3/10, so i'm rather impressed by how the oil fared during these periods.

Blackstone recommends a 9k OCI this time around, but i may just top out at 8k moving forward, we'll see.

 

Nice results, it's always good to have a real oil analysis and not just everybody's opinion!

 

nice results.

I got to mail off my oil... motul 8100

 

this is cool,
how much does this cost?

 

http://www.blackstone-labs.com/

 

Nice. That's the oil im currently running. M1 5/30 Extended performance with the larger m1-110 oil filter. What's your mile interval between the changes?

 

Updated first post with a new sheet.

 

Bump for yet another UOA. First posted has been edited.

 

thanks for the share as usual, i have been running M! EP for a while now too so good to know that it performs well since i drain at 5j max. keep an eye on the oil comsump and update since i havent heard about that on the HRs

 

Welcome! I think the burning issue is a fluke, my own shortcomings. But i'll definitely be monitoring this more closely.

 

Very cool, thanks for posting. I need to do an analysis on my next change, since I just bought the G used, and Blackstone is down the street from my office.

 

First post updated with two most recent reports.