What did you do to your NNBS GMT900 Tahoe/Yukon Today?
- Thread starter phattyford
- Start date
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Sez the guy with his car in the shop for a heart transplant. Did you go make sure they're working today?
Charlie207
Full Access Member
I ran that for a cycle before yanking out my 5.3, so I can't speak to it's effectiveness. That 5.3 engine, with about 180k on it, consumed some oil and always came out dark after 4-5k oil change intervals along with running a catch can.
There's an interesting video about that oil on Lake Speed Jr.'s YouTube channel. It can't hurt the engine, so I say go for it. I'd probably run it now, but I still don't have 5k miles on the rebuilt 6.0.
yeah, I've seen his and a few other videos of guys trying it. I'm sure it can't hurt, don't know that it would really help either. but I saw it on the shelf and impulse bought haha.
mines got 163k on it. I didn't look this time, but I've stuck a bore scope down the valve covers and in the drain before everything still looked clean. still aluminum colored, not a lot. of that reddish tint look old engines seem to get.
it uses zero oil between changes and I disabled afm about 30k ago just to try and avoid failure. so whatever the previous owner used was probably good oil.
I just cut the filter open this morning. waiting for the oil to soak out of the media, but funny you mention how black yours was. until this time mine wasn't pitch black. Just a well used dark brown. this was the 2nd fill with that Pennzoil Ultra Platinum and man is it black. like almost diesel oil black. was a bit surprised.
I don't know if it cleaned out some stuff I've not seen, or if it just turned black from use. either way it was free and I only ran it about 3500miles. but I don't think I'll be buying any with my money. I really wish I'd have gotta a sample now.
the catch can had what seemed like a normal little amount in it.
Grady_Wilson
Supporting Member
Lost a screw on the left front mudflap.
Heard a slight flapping sound on the highway and found that one fastener missing and every screw on both front flaps was loose.
Found a temporary replacement at a local farm supply but the washer is zinc and it is not captured on the screw.
Guess I'll have to order one online.
Only thing I can think of is the drastic temperature swings make them come loose so I'll have to check them every few months.
Heard a slight flapping sound on the highway and found that one fastener missing and every screw on both front flaps was loose.
Found a temporary replacement at a local farm supply but the washer is zinc and it is not captured on the screw.
Guess I'll have to order one online.
Only thing I can think of is the drastic temperature swings make them come loose so I'll have to check them every few months.
I had one disappear in like 5+ years, but always eyeball them just in case, so far so good
That reminds me I need to put mine on before we get any snow here
Grady_Wilson
Supporting Member
They made a huge difference in the amount of crap that gets thrown onto the running boards when it snowed a few weeks ago.
I guess I am in the market for a 02 sensor bank 1 sensor 1 it threw a P0134 once and P015b 3 times on the road trip
just got back home, probably change it out in the morning when it is cool
just got back home, probably change it out in the morning when it is cool
