Coolant opinions

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Aug 30, 2023 | 01:15 PM

49FIS

Thread Starter

Instructor

Joined: Mar 2020

Posts: 215

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From: PA

Coolant opinions

My two Toyota vehicle maintenance schedule calls for coolant change at 100,000 miles.
My C7 calls for 25,000 miles.
Any comments will be appreciated.

Aug 30, 2023 | 01:37 PM

JHundertmark

Racer

Joined: Nov 2015

Posts: 260

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From: Brighton MI

1. Always consider manufactures recommendation.

2. If under warranty definitely follow manufacturers recommendation.

3. I would be hard pressed to let coolant go for 100,000 miles on our vehicles.

4. Other than that, your choice.

Aug 30, 2023 | 01:48 PM

fuzzy03cls

Burning Brakes

Joined: Jun 2023

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From: FL

Quote:

My C7 calls for 25,000 miles

Where? My 2019 manual says 5 years or 150K miles. Normal or severe.
I normally do 5/75K miles if I get that far on any car.

Aug 30, 2023 | 02:30 PM

Flattman

Burning Brakes

Joined: Mar 2022

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From: Phoenix, Arizona

Quote:

Originally Posted by fuzzy03cls

Where? My 2019 manual says 5 years or 150K miles. Normal or severe.
I normally do 5/75K miles if I get that far on any car.

And my 2016 manual says the same exact thing.

Aug 30, 2023 | 02:47 PM

squirrelchew

Burning Brakes

Joined: Sep 2022

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From: MSP

150k miles (or 5 years, whichever comes first) per the 2017 manual.

If your manual is saying 25 miles, that's... concerning? That's not even a listed increment.

Aug 30, 2023 | 03:57 PM

CPB

Burning Brakes

Joined: Jan 2019

Posts: 954

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From: Louisiana

Quote:

Originally Posted by 49FIS

My two Toyota vehicle maintenance schedule calls for coolant change at 100,000 miles.
My C7 calls for 25,000 miles.
Any comments will be appreciated.

Could you show us where it called for that?

Aug 30, 2023 | 05:58 PM

49FIS

Thread Starter

Instructor

Joined: Mar 2020

Posts: 215

Likes: 62

From: PA

I stand corrected. My manual says 5 years, 150,000 miles. Toyota is 100,000 miles, or 10 years. I just don’t understand the difference since their coolant spec is the same as what GM calls for. Of course I’ll be doing a flush on the C7 as it is 5 years old.
Thanks for your replies.