Oil Change Poll

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Dec 21, 2011 | 10:19 AM

#21

BigTattooMan

Melting Slicks

Joined: Apr 2009

Posts: 2,772

Likes: 3

From: Gastonia NC

St. Jude Donor '10

I start thinking about it when the DIC hits 10% but don't usually get around to it until 5-0%

Dec 21, 2011 | 10:25 AM

#22

raydawg357

Thread Starter

Pro

Joined: Jan 2010

Posts: 646

Likes: 11

From: San Antonio Texas

Quote:

Originally Posted by dougbfresh

The DIC monitor does NOT measure viscosity.

You are absolutely correct, It's a computer based software algorithm that determines when to change oil based on engine operating
conditions. Excuse me for my poor choice of words.

Dec 21, 2011 | 10:26 AM

#23

daveream

Advanced

Joined: Aug 2006

Posts: 88

Likes: 0

From: canton ohio santa rosa beach fl

once a year B4 winter storage so it has clean oil sitting
there all winter

Dec 21, 2011 | 10:33 AM

#24

99 VET

Burning Brakes

Joined: Mar 2009

Posts: 1,028

Likes: 33

From: GRAYSLAKE IL

Oldtimer

St. Jude Donor '13

Once a yr here (3000 mi?) in the spring.

Dec 21, 2011 | 10:42 AM

#25

m6 c5

Melting Slicks

Joined: Jun 2010

Posts: 2,809

Likes: 3

From: Yorktown Virginia

Whenever the computer tells me to, no need in replacing perfectly good oil.

Dec 21, 2011 | 10:48 AM

#26

Vettmann17

Le Mans Master

Joined: Sep 2010

Posts: 5,520

Likes: 5

From: Long Island NY

About 5K. I know some will say you can go a lot more but I use mine almost as a DD and I have 82K on the clock so I consider it cheap insurance to make sure my oil is clean.

Dec 21, 2011 | 11:17 AM

#27

peter pan

Life Time NCM #2196

Joined: Sep 2004

Posts: 82,586

Likes: 1,698

From: Converse TX

On my deceased boosted C5 I did it at 2k max and when stock and on our C6 I do it at 50% DIC

Dec 21, 2011 | 11:31 AM

#28

billla

Le Mans Master

Joined: Jun 2004

Posts: 6,231

Likes: 65

From: Seattle WA

St. Jude Donor '14

Quote:

Originally Posted by Turbopower87

I usually do it once the DIC drops below 10%

I change it no matter what every April as part of my yearly pre-autox inspection and fluid change.

Mine's a daily driver doing maybe 10K miles/year...and I have a heavy right foot

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Dec 21, 2011 | 11:33 AM

#29

Grim Reaper

Race Director

Joined: Feb 2008

Posts: 10,926

Likes: 30

From: Not where I want to be!!

St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16-'17-'18-‘19

Quote:

Originally Posted by Must_Have_Z

Since I don't put too many miles on (<5000 a year), I simply change the oil before storing the Z for winter every year.

Same here. I think I've only put 3000 miles on mine since 4/2010. But 10 months of that I was out of town on business.

Dec 21, 2011 | 11:38 AM

#30

cds1

Instructor

Joined: Aug 2009

Posts: 234

Likes: 15

From: Fall City WA

Quote:

Originally Posted by VET IT B

Why before storing for winter? I usually do it just before the season starts.

I do the same. I put too few miles on in a yearly, so my annual oil change happens in the spring.

Dec 21, 2011 | 12:12 PM

#31

oh1vette

Safety Car

Joined: Sep 2008

Posts: 4,754

Likes: 167

From: Youngsville North Carolina

Follow my DIC

Dec 21, 2011 | 12:34 PM

#32

Yello95

Team Owner

Joined: May 2001

Posts: 25,050

Likes: 1,265

From: Virginia

St. Jude Donor '11

Quote:

Originally Posted by cds1

I do the same. I put too few miles on in a yearly, so my annual oil change happens in the spring.

\

Same here...I have always changed it myself...its waaaay too easy to change it yourself if you are still able to do it

Dec 21, 2011 | 01:29 PM

#33

TorchRedRocket

Race Director

Joined: May 2010

Posts: 16,574

Likes: 13

From: Winfield IN

Quote:

Originally Posted by Turbopower87

I usually do it once the DIC drops below 10%

I don't run home and change the oil right the day it dips below 10%, but after it does get below 10% and I have a free day with nice weather, then I'll change it.

Dec 21, 2011 | 01:33 PM

#34

DeeGee

Tech Contributor

Joined: Dec 2003

Posts: 19,384

Likes: 87

From: Horncastle Lincolnshire, England

2023 C5 of the Year Finalist - Unmodified

Another annual changer here. If it ever got close, I trust the DIC. With synthetic oil and a good algorithm I'm happy it does its job.

Dec 21, 2011 | 02:28 PM

#35

PETE O.

Drifting

Joined: Apr 2008

Posts: 1,283

Likes: 1

From: Eureka California

Every 3k, not a D.D. but I don't park it in the winter. Mobil 1 10w30 and a Purolator filter.

Dec 21, 2011 | 02:41 PM

#36

Mr. Hyde

Pro

Joined: Dec 2009

Posts: 572

Likes: 0

From: Seattle Wa

Hope that it's okay for a C6 guy to chime in...
Since I bought my car new, I've changed it every 5k miles. This is the first time I've decided to wait until the OLM (DIC) tells me to do so. I have read so many threads on this site that go into great detail about how much time, effort, and $$$ GM put into the OLM system, and with my new CTS Coupe the oil changes are free, but you MUST wait until the oil life drops into the single digits to have the dealership change it.
So I thought about it, and figured that if GM is going to stand behind their OLM on the Caddy, (and honor the warranty) I might as well trust them with the Vette too.
The Z06 is not my dd, the Caddy is, so I may lose my nerve and change it out in the Z06 as I approach the magic 5k miles.

Dec 21, 2011 | 03:22 PM

#37

kh400

Pro

Joined: Feb 2009

Posts: 651

Likes: 33

From: North Port Florida

Quote:

Originally Posted by VET IT B

Why before storing for winter? I usually do it just before the season starts.

Because of the acids in the oil that can and will pit the camshaft and ruin the bearing. I have seen this.

Dec 21, 2011 | 04:31 PM

#38

Oldvetter

Le Mans Master

Joined: Feb 2002

Posts: 6,937

Likes: 21

From: Waldorf MD

I go by DIC, even though since I have a 1998 C5 I could change it 50% later.

They upped the top limit from 10,000 miles to `15,000 miles.

Daily Driver here.