Oil changes
Racer
Joined: May 2007
Posts: 252
Likes: 2
From: Mississauga Ontario
I bought my C5 with 32k on it, and since I bought it I have followed the DIC and that has worked out to oil changes about every 6 to 7k on average. A couple of times I even went longer, as much as 9k. All of my oil analysis results have shown that the engine is showing very low wear, and it has also shown the oil to still be in good shape at the end of the interval too. I now have 102k on my C5 and it still runs beautifully. I fully expect this engine to last well beyond the 250k mark before I even need to think about rebuilding it. So what benefit would I get by changing my oil twice as often as the DIC is telling me to do? Answer:no benefit.
Melting Slicks
Joined: Oct 2004
Posts: 2,210
Likes: 9
From: CA
If you really want peace of mind.
Send some of that early changed "dirty" oil to get lab analyzed.
You will be surprised that "dirty" appearing oil is doing just as well a job as the the day you changed it.
http://www.blackstone-labs.com/free_test_kit.html
Drifting
Joined: Oct 2003
Posts: 1,658
Likes: 1
From: Houston (Spring) Texas
I have read about this so I am aware. My question is why would GM not pull Mobil1 if the data is accurate? They have even announced the use of M1 in 2 more vehicles. Turbo vehicles at that. It just doesn't make sense. Lets face it GM has the resources to easily verify the data one way or the other. Don't you think they would have and pulled M1 out of their cars? This issue if true can potentially cost GM big in longterm warranty claims.
Just a thought.
Just a thought.
GM doesn't have resources for anything....they're paying $3 billion in interest a year alone!
Burning Brakes
Joined: Jul 2008
Posts: 799
Likes: 9
From: Long Beach CA
As you can see the opinions vary quite a lot on this forum concerning oil change. A happy medium works for me. The oil life monitor is a very good monitor. But, I like to change it sooner than I'm supposed to.
Every 3000-5000 miles is playing it safe. And with Mobil 1 one nice thing is you do nt have to worry about it as you would petroleum based oil.
Every 3000-5000 miles is playing it safe. And with Mobil 1 one nice thing is you do nt have to worry about it as you would petroleum based oil.
I change it every 4000, never more than 5000. That's at about 50% - 55% on the DIC for me. I agree with everyone who said "oil is cheap, engines are expensive" or the equivalent.
Rick
Always Wave!!
Melting Slicks
Joined: Dec 2007
Posts: 2,902
Likes: 668
From: North Fulton Georgia
As for resources I meant enginners and other SME's that would be able to confirm the allegations. I am sure they have that available.
Melting Slicks
Joined: Dec 2007
Posts: 2,902
Likes: 668
From: North Fulton Georgia
Something else to think on. While I am not a liberal, Greenpeace, tree hugger by any stretch of the imagination, I do believe we need to act a tiny bit more responsibly than we have in the past. Why waste a resource if it's not necessary. Gas was relatively cheap so we built gas hungry behemoths and what happened it almost went to $5 a gallon.
We can't continue to consume for consumptions sake anymore. Oils is cheap is not a good philosophy. Recent history has taught us that.
We can't continue to consume for consumptions sake anymore. Oils is cheap is not a good philosophy. Recent history has taught us that.
Melting Slicks
Joined: Oct 2004
Posts: 2,210
Likes: 9
From: CA
Over changing the oil is not going to save your engine from a terrible fate that someone else who changed as required will suffer.
This is pure emotions. There is nothing factual whatsoever to back up the oil is cheap argument.
Air is cheap too, better change that tire air too regularly.
