2024 C8 Maintenance - Table
Thread Starter
Racer
Joined: Aug 2015
Posts: 363
Likes: 36
2024 C8 Maintenance - Table
It would be nice if GM would go back to a maintenance table - in lieu of paragraph format. This is what I captured. Did I miss anything?
Rotate Tires every 7,500
Oil & Filter every 7,500
Trans filter @ 7,500
Cabin Air filter 22,500 or every 24 months
Trans filter every 22,500
Trans fluid & Trans filter 45,000 (or every 3 years)
Spark plugs every 97,500
Hood lift struts @ 100,000
Cooling system 150,000 or every 6 years
Brake fluid every 5 years
Air conditioning desiccant every 7 years
Rotate Tires every 7,500
Oil & Filter every 7,500
Trans filter @ 7,500
Cabin Air filter 22,500 or every 24 months
Trans filter every 22,500
Trans fluid & Trans filter 45,000 (or every 3 years)
Spark plugs every 97,500
Hood lift struts @ 100,000
Cooling system 150,000 or every 6 years
Brake fluid every 5 years
Air conditioning desiccant every 7 years
Race Director
Joined: Mar 2007
Posts: 11,373
Likes: 8,531
It would be nice if GM would go back to a maintenance table - in lieu of paragraph format. This is what I captured. Did I miss anything?
Rotate Tires every 7,500
Oil & Filter every 7,500
Trans filter @ 7,500
Cabin Air filter 22,500 or every 24 months
Trans filter every 22,500
Trans fluid & Trans filter 45,000 (or every 3 years)
Spark plugs every 97,500
Hood lift struts @ 100,000
Cooling system 150,000 or every 6 years
Brake fluid every 5 years
Air conditioning desiccant every 7 years
Rotate Tires every 7,500
Oil & Filter every 7,500
Trans filter @ 7,500
Cabin Air filter 22,500 or every 24 months
Trans filter every 22,500
Trans fluid & Trans filter 45,000 (or every 3 years)
Spark plugs every 97,500
Hood lift struts @ 100,000
Cooling system 150,000 or every 6 years
Brake fluid every 5 years
Air conditioning desiccant every 7 years
Rotate Tires every 7,500
Oil & Filter
Trans filter @ 7,500 (between 7000-8000 miles even it done earlier)
Cabin Air filter 22,500 or every 24 months
Trans filter every 22,500 (second change at 22,500 miles, then every 22,500 miles thereafter) or when the filter life monitor says so, or every 24 hours of track use.
Trans fluid & Trans filter 45,000 (or every 3 years), or when the fluid life monitor says so, or every 24 hours of track use.
Spark plugs every 97,500
Hood lift struts @ 100,000
Cooling system 150,000 or every 6 years
Brake fluid every 5 years
Air conditioning desiccant every 7 years
Racer
Joined: Nov 2021
Posts: 482
Likes: 428
From: NE Ohio
@g's13 GS Thanks for posting this.
A few questions for the forum: Is the maintenance schedule the same for years 2020 to 2024? I'm assuming the maintenance is the same for a 2024 as for my 2023, but we all know what happens when you assume things.
And haven't I read about a transmission fluid filter flush (not fluid change) that should be done with each oil change? I don't see it in the manual but I am certain I have read about it here.
Thanks, WishfulThinker23
A few questions for the forum: Is the maintenance schedule the same for years 2020 to 2024? I'm assuming the maintenance is the same for a 2024 as for my 2023, but we all know what happens when you assume things.
And haven't I read about a transmission fluid filter flush (not fluid change) that should be done with each oil change? I don't see it in the manual but I am certain I have read about it here.
Thanks, WishfulThinker23
Race Director
Joined: Mar 2007
Posts: 11,373
Likes: 8,531
@g's13 GS Thanks for posting this.
A few questions for the forum: Is the maintenance schedule the same for years 2020 to 2024? I'm assuming the maintenance is the same for a 2024 as for my 2023, but we all know what happens when you assume things.
And haven't I read about a transmission fluid filter flush (not fluid change) that should be done with each oil change? I don't see it in the manual but I am certain I have read about it here.
Thanks, WishfulThinker23
A few questions for the forum: Is the maintenance schedule the same for years 2020 to 2024? I'm assuming the maintenance is the same for a 2024 as for my 2023, but we all know what happens when you assume things.
And haven't I read about a transmission fluid filter flush (not fluid change) that should be done with each oil change? I don't see it in the manual but I am certain I have read about it here.
Thanks, WishfulThinker23
The maintenance is the same in all the manuals. The 2024 manual clarified that the DCT filter change must be between 7000-8000 miles, regardless if done earlier. Previous manuals said "at 7500" without specifying a tolerance.
There is a somewhat minor change - The fluid change was always based on the fluid life monitor or 3 years. The later manuals added some wording that specifically said "at 45000 miles" - so it every three year, or at 45000 miles, or when the FLM says, or every 24 hours of use.
Race Director
Joined: Aug 2016
Posts: 12,767
Likes: 10,201
From: Garden Valley CA
It would be nice if GM would go back to a maintenance table - in lieu of paragraph format. This is what I captured. Did I miss anything?
Rotate Tires every 7,500
Oil & Filter every 7,500
Trans filter @ 7,500
Cabin Air filter 22,500 or every 24 months
Trans filter every 22,500
Trans fluid & Trans filter 45,000 (or every 3 years)
Spark plugs every 97,500
Hood lift struts @ 100,000
Cooling system 150,000 or every 6 years
Brake fluid every 5 years
Air conditioning desiccant every 7 years
Rotate Tires every 7,500
Oil & Filter every 7,500
Trans filter @ 7,500
Cabin Air filter 22,500 or every 24 months
Trans filter every 22,500
Trans fluid & Trans filter 45,000 (or every 3 years)
Spark plugs every 97,500
Hood lift struts @ 100,000
Cooling system 150,000 or every 6 years
Brake fluid every 5 years
Air conditioning desiccant every 7 years
The lift struts is funny, I've never replaced them on a schedule. I replace them when they go bad. Possibly in there to clarify they are maintenance items and not covered under warranty after 100K miles.
Le Mans Master
Joined: Dec 2000
Posts: 9,900
Likes: 1,842
From: Hot Springs AR
I know this is a fairly old thread, but came up in a google search for maintenance schedules, and it reminded me of something I've never seen before: to change out the AC desiccant every 7 years. Why? Why would you break open a sealed system that is healthy to change out a desiccant bag because of a calendar date?
Race Director
Joined: Aug 2016
Posts: 12,767
Likes: 10,201
From: Garden Valley CA
I know this is a fairly old thread, but came up in a google search for maintenance schedules, and it reminded me of something I've never seen before: to change out the AC desiccant every 7 years. Why? Why would you break open a sealed system that is healthy to change out a desiccant bag because of a calendar date?
Le Mans Master
Joined: Dec 2000
Posts: 9,900
Likes: 1,842
From: Hot Springs AR
I tend to agree that it makes me nervous breaking into a perfectly functioning AC system to replace the desiccant. But the C8 uses the new yf1234 refrigerant and requiring desiccant replacement on yf1234 systems seems to be common so I suspect that either the yf1234 desiccant tends to break down with age or the yf1234 system is more susceptible to the effects of old desiccant. This is not going to be an inexpensive service and it carries some risk. You may be better off not doing the service and dealing with a repair if something happens. Hopefully more information will become available of why this is necessary.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
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
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
E-Ray, 3LZ, ZER, LIFT
Joined: Sep 2007
Posts: 34,947
Likes: 12,362
From: NE South Carolina
It would be nice if GM would go back to a maintenance table - in lieu of paragraph format. This is what I captured. Did I miss anything?
Rotate Tires every 7,500
Oil & Filter every 7,500
Trans filter @ 7,500
Cabin Air filter 22,500 or every 24 months
Trans filter every 22,500
Trans fluid & Trans filter 45,000 (or every 3 years)
Spark plugs every 97,500
Hood lift struts @ 100,000
Cooling system 150,000 or every 6 years
Brake fluid every 5 years
Air conditioning desiccant every 7 years
Rotate Tires every 7,500
Oil & Filter every 7,500
Trans filter @ 7,500
Cabin Air filter 22,500 or every 24 months
Trans filter every 22,500
Trans fluid & Trans filter 45,000 (or every 3 years)
Spark plugs every 97,500
Hood lift struts @ 100,000
Cooling system 150,000 or every 6 years
Brake fluid every 5 years
Air conditioning desiccant every 7 years
It leads folks to another bad conclusion (as Andy pointed out in Post #2) where GM confounded the Engine Oil Filter change with the 7500 miles required to change the DCT filter. Makes folks think of the "Old Days" when miles and time were all we had. My two C7's and C6 ONLY SAID what it does in the C8 Owner's Manual if you look carefully ONLY the OLM is what determines when to change engine oil. Heck I knew GOOD Highway Miles were far far better than POOR City Miles from my Uncle in the mid 1950's. He was the Service Manager at a large Chevy dealer in a very big city on the East Coast (later was GM of the Dealership.)
Race Director
Joined: Aug 2016
Posts: 12,767
Likes: 10,201
From: Garden Valley CA
Well, I have a Chevrolet Protection Plan which goes out to nearly 10 years. If I don't change the desiccant and have an AC failure in the last couple of years they would have a reason to deny coverage.
Race Director
Joined: Aug 2016
Posts: 12,767
Likes: 10,201
From: Garden Valley CA
Modern non-directional tires can be switched side to side without harm. Leading edges of tread blocks wear faster than the trailing edges so changing the direction of rotation will help even out wear and possibly reduce tire noise from uneven wear.
Drifting
Joined: Apr 2012
Posts: 1,325
Likes: 465
E-Ray, 3LZ, ZER, LIFT
Joined: Sep 2007
Posts: 34,947
Likes: 12,362
From: NE South Carolina
I check the tire wear. If about the same inside to outer tread, I don't bother. BUT I will get new tires before the 1st wear bar shows anywhere. One hydroplane incident could cost far more than new tires! Especially now with AWD I'm driving more in rain.
Cruising
Joined: Jun 2012
Posts: 11
Likes: 4
From: Indianapolis Indiana
Sorry if this has been explained or asked already. I have a new to me 2021 HTC. I have reached (slightly past) the 7500 miles.
I bought it with 4800 miles and a fresh oil change.
What should I request from the dealer for the 7500 mile maintenance
Many thanks.
I bought it with 4800 miles and a fresh oil change.
What should I request from the dealer for the 7500 mile maintenance
Many thanks.
E-Ray, 3LZ, ZER, LIFT
Joined: Sep 2007
Posts: 34,947
Likes: 12,362
From: NE South Carolina
This is my Invoice for my 2020 C8 end year 3 with ~8000 miles. Might bring it in as It's one of the lowest of those posted on the Forum. . If they want to charge a lot more, ask WHY!
Not it includes $106 for my engine Oil/Filter change as it was also due for change as all C8's regardless of low miles every 12 months minimum!
Last edited by JerryU; Nov 19, 2024 at 10:06 PM.
Race Director
Joined: Jan 2004
Posts: 10,219
Likes: 344
I confirmed this with Michelin just to ease my concern...
