Blackstone Labs Oil Analysis

[Byrds8]

DFM disabled, thicker oil, and heavier tires. I still get 14ish around town with driving it like it’s a race car lol.

 

[OC ZR2]

With my DFM disabler and the Ultimate 9 throttle control, just got back from a trip and got solid 18 going and 21 coming back. Locked in at 70, with gas over 5 bones!

 

[MNNJR69]

No, wrestled over it but decided not to. The way I drive it probably uses all 8 all the time.

That DFM disabler is worth every penny

 

[MNNJR69]

You then have the opportunity to take corrective action and reduce the safety concerns associated with this catastrophic failure........that's the whole purpose of the recall and pico test too. While its imperfect, we have already seen several examples of pre-emptive motor replacements.

You could.also decide to sell or trade the vehicle and move on.

Data gives you options!

@securityguy is the official ZR2 Scrooge

 

[AXE]

Pulled another sample on the Tahoe at 1000 miles after the previous sample showed high iron particles. I had switched to Mobil 1 0W40 FS, but haven't completed the recall yet. This oil sample shows really good numbers and no further indication of iron particles like the previous. No real explanation for the previous test, but I'll trust what I see to be good.

I guess I'll now proceed with the recall and have them save the filter so can cut it open for inspection.

Interesting to note the oil additive package definitely looks better during early use compared to a 5k change where it's mostly used up!

I had the recall on the Tahoe done and it passed, so I have no explanation for the previous oil analysis showing larger iron particles. Of course i forgot to ask them to save the filter, so I'll never know if there were any notable particles on that 2K 0W40 change.

Maybe it was just a fluke, but I guess for now I run with it. It sure does seem to run just fine, so hopefully no longer term issues. The Tahoe sure is a nice rig and really hasn't had any issues other than a few recalls