jacks2005
Safety Car
Joined: Dec 2006
Posts: 4,582
Likes: 1,661
From: Pearland / Houston Tx
GM says to replace when the Oil Life Monitor approaches 0% or every 12 months, whichever comes first.
I put about 5000 miles per year on mine and since it is older, I don't have a problem changing mine about every 18 months. Usually about 25% life left.
Not sure how winter storage affects need to change and when. Not much of that in Houston. Other can chime in on that.
Suggestion: Be a little more descriptive in the title of your threads. Get more help that way.
I put about 5000 miles per year on mine and since it is older, I don't have a problem changing mine about every 18 months. Usually about 25% life left.
Not sure how winter storage affects need to change and when. Not much of that in Houston. Other can chime in on that.
Suggestion: Be a little more descriptive in the title of your threads. Get more help that way.
Pro
Joined: May 2018
Posts: 611
Likes: 184
From: Atlanta GA
long story short, I always change the oil in my vettes at minimum yearly regardless of low mileage.
better safe than sorry and all that.
Pro
Joined: Dec 2017
Posts: 592
Likes: 54
From: Plymouth Minnesota
Have you ever seen a ‘best if used by date’ on motor oil?
Rather than seek ‘opinions’ I would suggest due diligence on investigating relevant/documented recent research.
On the other hand, an oil change is cheap insurance keeping everything safe.
Rather than seek ‘opinions’ I would suggest due diligence on investigating relevant/documented recent research.
On the other hand, an oil change is cheap insurance keeping everything safe.
Race Director
Joined: Mar 2010
Posts: 16,871
Likes: 5,327
From: T-Town WA
2016 C6 of Year Finalist
OP, you have a 2005 (17 years old) and the total miles are ??? For peace of mind use an oil sampling service to see what your oil is really like.
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Melting Slicks
Joined: May 2020
Posts: 2,135
Likes: 1,308
From: North Little Rock, AR
This has been a great debate on how often to change oil. I change the oil in every vehicle I own every 3000 miles. My vette never hits that mileage in a year so I change it at the beginning of each season. May be overkill for some but that is how I roll.
Racer
Joined: Nov 2018
Posts: 352
Likes: 255
From: McKinney, Texas
Did the Blackstone Labs thing about 3 oil changes ago. I can't find the report, but I sent the sample after I changed the oil at 5,700 miles and 12 months. The only real note was that the oil could be run longer. And this is with moderate tracking of the car 5+ times a year.