Use old engine oil?
Thread Starter
Melting Slicks
Joined: Dec 2006
Posts: 2,483
Likes: 1
From: Bay Area CA
Use old engine oil?
Do you guys use engine oil that has been opened and sitting around for 4 months?
I know that it's not good to use old opened brake fluid. Just wodering of the same rule applies for engine oil too.
I know that it's not good to use old opened brake fluid. Just wodering of the same rule applies for engine oil too.
Race Director
Joined: Feb 1999
Posts: 19,659
Likes: 34
From: Lenoir City Tennessee
Ci 6, 8 & 10 Veteran
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15
I have no problem using oil that has been setting on the shelf for a while like that. As a matter of fact I buy to 5 quart jugs when I change the oil in my Z because it takes 6 quarts to fill it. I keep using the partial 5 quart jug until it is gone.
Burning Brakes
Joined: Feb 2004
Posts: 924
Likes: 2
From: Kearneysville West Virginia
The problem with regular brake fluid is that it absorbs moisture after being opened. The oil will be fine, no problem.
Le Mans Master
Joined: May 2006
Posts: 5,814
Likes: 414
From: Pittsburgh suburbs Pa.
Even the notion of brake fluid going bad is exaggerated. How often do you change the brake fluid in your master cylinder ? It can sit on the shelf a reasonably long time once the seal is broken as long as you keep the cap on tight and don't let moisture get in it. With oil, I don't even know if there is an expiration time. Just common sense.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Every 2027 Corvette Engine Explained
Joe Kucinski
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Verdad Gallardo
10 Ugly Corvettes That We Still Kinda Love
Joe Kucinski
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Advanced
Joined: Mar 2008
Posts: 70
Likes: 1
From: Louisville Kentucky
Even the notion of brake fluid going bad is exaggerated. How often do you change the brake fluid in your master cylinder ? It can sit on the shelf a reasonably long time once the seal is broken as long as you keep the cap on tight and don't let moisture get in it. With oil, I don't even know if there is an expiration time. Just common sense.
