Oil Change?

tls630 · 01-29-2010, 03:26 PM

I just changed the oil in my 08 for the second time. I have 9k miles on it. I noticed small particles of what looked like aluminum in the drain oil. Is some of this normal or do I have a problem?It runs fine and I have about 40lbs of oil pressure hot at driving speed. Problems?

Bob K · 01-29-2010, 03:32 PM

I think you have a problem but we need one of our experts to post. I would not like seeing that if it were my car. 40# would be low for my C5.

tls630 · 01-29-2010, 03:42 PM

I talked to a friend who has one like mine and he said he found some fine shaving's on the end of the drain plug the first 2 changes and has found no more since. He has about 20k on his! Should I take it to the dealer? I try to stay away from there as much as possible?

Bob K · 01-29-2010, 04:11 PM

Quote:

Originally Posted by tls630

I talked to a friend who has one like mine and he said he found some fine shaving's on the end of the drain plug the first 2 changes and has found no more since. He has about 20k on his! Should I take it to the dealer? I try to stay away from there as much as possible?

You need one of our experts like RevXtreme to reply. I have never seen particles in my oil and my C5 runs about 48# oil pressure.

RevXtreme 1 · 01-30-2010, 08:59 AM

40#'s at cruise is acceptable, but on the low side of it.

Not uncommon the first change to have a small amount, but you really need your oil filter cut open & examined. That will tell the whole story of what is going on in the motor.

AL comes from either left over particles from the machining (should not ever be any if properly cleaned before assy). Iron fillings (the fine dark grey "mud" looking stuff on the magnetic oil plug is normal. especially while rings are seating. Any magnetic paticles or pieces that are shiney are a concern....they are coming from a part failing like a rocker or lifter or timing set. Brass or "gold" colored shiney particles are bearings. NOT good.

Bring in your old filter & we have a cutter & do it free if in doubt.

Bob K · 01-30-2010, 09:34 AM

Thanks Tracy for the info. I hope he replies. Second oil change and still has particles plus low pressure did not sound good to me but I'm not an engine builder. Great idea to cut the filter.

tls630 · 01-30-2010, 11:34 AM

Thanks for the info. I took the old oil and oil filter to the parts house where I buy my Mobil 1. They chrush the filters and send the oil off to be recycled. I geuss I will wait and see what happens. I have plenty of warranty left.

Bob K · 01-30-2010, 12:10 PM

Quote:

Originally Posted by tls630

Thanks for the info. I took the old oil and oil filter to the parts house where I buy my Mobil 1. They chrush the filters and send the oil off to be recycled. I geuss I will wait and see what happens. I have plenty of warranty left.

Just don't make any long trips.

tblt44 · 01-30-2010, 06:41 PM

I had metal shavings in my oil on my 2002 p/u. At 16k I got a new engine do to pistol slap(thats what some were calling it).i would get a noisey tapping sound for the first 15-20 sec at start up and a low noise tapping when hot at ideal.That was on a 4.8 v8 many had this problem early in 2000.I hope your is ok.
I had to go thru the BBB to get a noew engine because the dealer said all that was normal at first

tls630 · 01-30-2010, 07:26 PM

This is a 08 LS3 motor. I changed oil the first time at 3k and now the second time at 9k. The oil life monitor was like 75% the first change and 68% this time. The oil was black black when I changed both times. It looked like it had 100k on it.