What did you do to your NBS GMT800 Tahoe/Yukon Today?

[Rocket Man]

Here's a screenshot of my oil sample results. View attachment 232591

That says your sample from 2017 was worse in all areas though. Is that historical comment from sample 1 from 2017 or the current sample, #2? How many miles on the engine? 148,000? It says 14 in 2017...

 

[Sam Harris]

@Rocket Man @Tonyrodz @Fosscore: I rarely have an opportunity to really NAIL IT.. so this is the best I can do for a weekday on city streets.. lol.

ETA: And as with the previous videos... a subwoofer is required. [emoji106][emoji16][emoji631]

 

[Rocket Man]

@Rocket Man @Tonyrodz @Fosscore: I rarely have an opportunity to really NAIL IT.. so this is the best I can do for a weekday on city streets.. lol.

ETA: And as with the previous videos... a subwoofer is required. [emoji106][emoji16][emoji631]

There ya go. There’s them headers. Gotta love that sound huh Sam?

 

[Fosscore]

@Rocket Man @Tonyrodz @Fosscore: I rarely have an opportunity to really NAIL IT.. so this is the best I can do for a weekday on city streets.. lol.

ETA: And as with the previous videos... a subwoofer is required. [emoji106][emoji16][emoji631]

yeah buddy! Sounds great!!

 

[HiHoeSilver]

@Rocket Man @Tonyrodz @Fosscore: I rarely have an opportunity to really NAIL IT.. so this is the best I can do for a weekday on city streets.. lol.

ETA: And as with the previous videos... a subwoofer is required. [emoji106][emoji16][emoji631]

That's awesome.

 

[Sam Harris]

There ya go. There’s them headers. Gotta love that sound huh Sam?

Ahhhh yeeeaahh... I wish I could NAIL IT all day. That would be a sweet job. [emoji1787][emoji23]

 

[Fless]

Ahhhh yeeeaahh... I wish I could NAIL IT all day. That would be a sweet job. [emoji1787][emoji23]

I heard it all the way across town!!!

 

[Tonyrodz]

@Rocket Man @Tonyrodz @Fosscore: I rarely have an opportunity to really NAIL IT.. so this is the best I can do for a weekday on city streets.. lol.

ETA: And as with the previous videos... a subwoofer is required. [emoji106][emoji16][emoji631]

Lol, sounds great!

 

[ScottyBoy]

That says your sample from 2017 was worse in all areas though. Is that historical comment from sample 1 from 2017 or the current sample, #2? How many miles on the engine? 148,000? It says 14 in 2017...

Not sure why it says 14 miles on it for 2017. I believe it had about 140k on it or so. Maybe they forgot a few zeros on there, lol. But yes, my last sample was indeed much worse. I just chalked it up to going SO long on the oil, because I went over 10k miles on it. The next one I only went about 5k, but I forgot to do a sample. Now I'm at 148k and just changed it and sent in another sample. It makes sense that all the wear metals are down, but there's still what they call critical levels of coolant in the oil. The ONLY visual sign of coolant I have EVER seen in my oil was moisture on the bottom of my oil fill cap. And I was told that is normal with my driving style, I very rarely drive more than 4-5 miles at a time, then the truck sits for at least 6-8 hours.

 

[HiHoeSilver]

Here's a screenshot of my oil sample results. View attachment 232591

Your wear numbers have certainly improved. Says a lot for a shorter OCI, imo.

Your sodium and potassium are REALLY high. After ~6k miles, mine were 8 and 2, respectively. You have coolant in there somehow. Your intervals are very long, so it's tough to guess how bad it is. A little leak adds up over such a long OCI.