Chevy 6.0 V8 Oil Analysis Results

[jason07-1zzfe]

Still is a crap result, IMO.

Amazing to me what people will put up with from an auto manufacturer. You don't owe them anything. You are the one paying a ton of money for this vehicle, they owe you a vehicle that is worth the money.
At the very least, sell it and get something else. Yes you would lose some money from depreciation but at least not as much as if you wait longer and made all those payments for a questionable vehicle.

 

[MNgopher]

That is exactly the advice that everyone else has given the owner of this truck. Too much sentimental value is being attached to the color (which is no longer offered) and a few other body mods. Each result in the sequence has gotten progressively worse. Too bad...

 

[Al]

Some options:

First the fuel issue needs to get addressed. Whip them like a rented mule to get this fixed. If they can't in a number of tries over a number of days (30, I believe). Perhaps you can get the Lemon Law invoked. I think this issue is your ticket to success. It's going to be hard to get the other issue (piston slap) resolved IMHO.

As was mentioned the piston slap is for sure inherent in the 3.1 and 3.4. However if the slap goes away within say one to two minutes it probably will not affect engine longivity. ( I know-I know-still bs)

Does the unit have the 60K warranty on the Power train? If so- depending on the miles you drive you still have a safety net.

I doubt its a good financial decision getting rid of the vehicle. I realize that the oil analysis should help make that decision, but as of now you have the ammunition to beat GM over the head even if the vehicle fails outside of the warranty. You may not get 100%-but you will get something.
I had 2 3.1's and they both had the slap. Neither died because of this issue. One had 140K and the other 70K.

Lastly-you might want to switch to Redline. I have heard that at least in one case it stopped a piston slap when Mobil 1 did not. BTW switching to Mobil 1 10w30 probably will not help. It didn't help me.

Good luck,
Al

 

[MNgopher]

Here is a paste of some oil analysis results from a fiend: Other useful information: Total mileage on unit is 27,000 miles. Oil change / sample interval was 3950 miles. I am getting the type of oil used, but I know it is 5w30.

quote:

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just got my latest results from blackstone. This is what they had to say: : This oil was in use for the same interval as the last sample and we found aluminum and iron - probably from piston scuffing - about doubled. 3.0% of this sample was gas, which is enough to suspect a fuel system problem. We expect the fuel is the cause of the extra upper end wear. Lead and copper, from bearings, have stabilized. The oil's viscosity was okay for a 5w30 and the stress level (on the oil) was okay. Air and oil filtration look okay. We found no moisture or anti-freeze in this used oil. Stay at 4,000 miles oil use next sample.

RESULTS
ALUMINUM 9
CHROMIUM 2
IRON 80
COPPER 32
LEAD 13
TIN 3
MOLYBDENUM 73
NICKEL 2
MANGANESE 1
SILVER 0
TITANIUM 0
POTASSIUM 0
BORON 101
SILICON 11
SODIUM 10
CALCIUM 2518
MAGNESIUM 56
PHOSPHORUS 737
ZINC 920
BARIUM 0

I haven't been a vocal complainer of the 6.0. Mine knocks loud cold, and most of the time warm. I don't really know what I should do. I just continue documenting and praying that GM get the ba!!s to fix this problem.

2001 Chevy 2500HD, Extended cab, short bed, Sunset Metallic Orange.
6.0 gas, Auto. Helix throttle body plate, amsoil air filter, Mickey Thompson Radial MTX 285's on American Eagle 589's, (NEW) Flowmaster 50 series dual out the back.

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Any thoughts? Doesn't the fuel seem high? What would cause that?

[ December 18, 2002, 03:02 PM: Message edited by: MNgopher ]

 

[jason07-1zzfe]

Well I know what I would do. Give GM a chance to fix it. If they don't, drop it like a fly and never look at another GM product again. That's what analysis is for. I know I wouldn't keep a car that shows obvious problems through analysis.Why.

Man... maybe the chinese (see interesting article thread) can build-em better than the garbage they have been putting out lately.

Sure will be interesting to see how all of these last in the long term.

 

[G-MAN]

quote:

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Originally posted by Jason Troxell:
Well I know what I would do. Give GM a chance to fix it. If they don't, drop it like a fly and never look at another GM product again. That's what analysis is for. I know I wouldn't keep a car that shows obvious problems through analysis.Why.

Man... maybe the chinese (see interesting article thread) can build-em better than the garbage they have been putting out lately.

Sure will be interesting to see how all of these last in the long term.

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The GM 3.1 and 3.4 V6 engines have had a notorious history of piston slap and wrist pin related noise problems. My Olds mini van has had both since day one, and using synthetic oil, they both go away completely when the engine is fully warmed up. But from a durability standpoint, I've got no complaints. My 3.4 has right at 150,000 miles on it, uses no oil between changes, and gets 30 mpg on the highway.

 

[MNgopher]

Update: Oil was Mobil 1 5w30. Engine has had pinging issues, which were solved, but is one of the infamous 6.0 knockers. GM has been in the loop, and has responded that nothing is wrong and they won't do anything since the engine has not failed. Engine is worked hard - cruising at 80+ mph (around 2500 rpms), and sees WOT often, is often over 4000 rpms.

 

[MNgopher]

OK, so fuel needs to be addressed. Any ideas on where its coming from and how to fix it?

BTW - not my vehicle - Just trying to help out!