What did you do to your NNBS GMT900 Tahoe/Yukon Today?

[Doubeleive]

Grabbed a couple qts to do the front diff
View attachment 452300

man, just had a derp moment, for whatever reason I thought I had bought mobile 1, tossed my receipt but I used my phone number maybe I can exchange them, grr

 

[Geotrash]

the craftsmans line went to crap long before the name was sold off. big difference between vintage craftsman and the later stuff. there's a market for the old stuff if you have it. the newer stuff wasn't made as well.) it's noticeable side by side.

I still have my dad's 1/2" Craftsman breaker bar from the 1950's. It's nigh unbreakable.

 

[Grady_Wilson]

man, just had a derp moment, for whatever reason I thought I had bought mobile 1, tossed my receipt but I used my phone number maybe I can exchange them, grr

What would be the difference?
As long as they are the same formula the Valvoline should be fine.
Most of what I've seen for Mobil1 is like Monster Cable for audio stuff, just the name.

Unless you've seen real world testing from someone like Dana that proved a tremendous difference, I wouldn't think there would be a difference.

 

[Doubeleive]

What would be the difference?
As long as they are the same formula the Valvoline should be fine.
Most of what I've seen for Mobil1 is like Monster Cable for audio stuff, just the name.

Unless you've seen real world testing from someone like Dana that proved a tremendous difference, I wouldn't think there would be a difference.

probably no difference, I just thought I had grabbed m1 lol. I will just use this

 

[Grady_Wilson]

probably no difference, I just thought I had grabbed m1 lol. I will just use this

Only case I have seen where Mobil1 made a significant difference is with Nissan VQ engines.
Someone had some repeated Blackstone testing done and with Mobil1 there was an increase of brass in the used oil.
Other synthetic oils didn't show this so Blackstone surmised the Mobil1 wasn't protecting something as well as other oils.
They guessed cam bearings.
Granted, this was back around 2004 so things may have changed with their oils.

 

[Geotrash]

Only case I have seen where Mobil1 made a significant difference is with Nissan VQ engines.
Someone had some repeated Blackstone testing done and with Mobil1 there was an increase of brass in the used oil.
Other synthetic oils didn't show this so Blackstone surmised the Mobil1 wasn't protecting something as well as other oils.
They guessed cam bearings.
Granted, this was back around 2004 so things may have changed with their oils.

Not surprised, though I used to run it exclusively back then and got 300K out of an Isuzu V6 that usually threw rod bearings at around half that mileage. Mobil1 was also marketed in a shady way. The base oil stock was actually dino juice that they re-processed and labeled as "synthetic". Not sure if that's still the case but I stopped using it and started using Walmart real synthetic oil instead.