3000 mi or DIC %?
Life Time NCM #2196
Joined: Sep 2004
Posts: 82,595
Likes: 1,711
From: Converse TX
Originally Posted by Evil-Twin
We did thousands of miles of testing under all types of conditions... we did oil analysis under every known scenario.. the Oil life monitor works, and works well,.,, use it... down to 0% or 1 year which ever comes first... synthetic oil does not lose it's lubricity after a year but in combination with combustion increases the PH of the oil and that acidic condition can cause problems in gaskets and etching of components over time.
Thanks
Advanced
Joined: Feb 2004
Posts: 71
Likes: 0
From: Dallas Texas
This is interesting! I also sit on two diesel sites (VW and Cummins). We discuss changing oil every 10k to 20k. I also change my C5’s oil under 3k but this is more a time issue than a miles issue.
Race Director
Joined: May 2001
Posts: 15,324
Likes: 2,079
From: Guelph, Ontario
Originally Posted by skydive
Does this mean that a 97 to 00 owner can go 150% to compensate for 10k vs 15k???
I always let mine go to zero, then reset it again and keep going. On my last oil change I went 9000 miles. I sent the used oil for analysis and it was still in great shape, it easily could've gone another 3 or 4k, if not more. There was very low engine wear and the oil had no contamination in it either (such as fuel)
Those of you who honestly think you're prolonging your engine's life by changing it every 3k should get the oil analyzed. Then you would know you could safely go triple that amount or more and it would not hurt the engine one bit.
Safety Car
Joined: Jul 2001
Posts: 4,661
Likes: 67
From: Ocean Springs MS
Originally Posted by Evil-Twin
I have posted this information here every few months over the last five years....
Team Owner
Joined: Mar 2001
Posts: 21,325
Likes: 3,841
From: small town in S.E Pa. PA
St. Jude Donor '03-'04
Originally Posted by fdxpilot
Yeah, but it seems like every other noob has got to ask the question again. Keep up the good work, ET.
Knowledge is what some of us have plenty of...
What I do mind are the countless post of skepticism from people who challenge my posts. and its not so much the challenge but their criticism has no basis in fact and usually comes from 1960's technology, or from someone they heard it from, or from what their grandfather did, or from some guy who knew a girl that got laid by some one who worked for a dealership.
I have dealt with areas of the C5 that I am an absolute expert on..and offer the same information over and over , year after year...
I have offered educated guesses, or contacted my GM engineering pipeline, on areas that I have no first hand data.
I welcome the same questions over and over...its what the forum is here for.
The skeptics and know it alls and wanna-be hero's are the ones that push me closer to the door.
Last edited by Evil-Twin; Mar 25, 2006 at 01:13 PM.
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Team Owner
Joined: Jul 2004
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From: .... NJ
Cruise-In VII Veteran
St. Jude Donor '05 thru '19
Originally Posted by John Shiels
tested mine after 1500 track only miles. That is some hard use. I was told to go 2500 track miles. That's redlined all the time.
Premium Supporting Vendor
Joined: Aug 2001
Posts: 5,364
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From: King George VA
Originally Posted by peter pan
Not to hijack the thread, but what kind of testing has been done on FI setups like I run? Forged motor, lowered compression and can see up to 14 lbs of boost? Do those 1/4 runs or boosted runs on the street have a big impact on the Royal Purple I am using?
Thanks
Thanks
For street use, I would follow the OLM though and I do in my wife's Chevy Trailblazer, averaging about 8,500-9,500 miles per oil change.
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From: Buy USA products! Check the label! Employ Americans
Originally Posted by StephenT
And the DIC takes load in rpm and mph timing into acount as per Evil-Twin, I wonder what % the DIC would be after 2500 track miles.