Mixing Antifreeze
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Lead Driver
Joined: Nov 2002
Posts: 9,679
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From: Jefferson City, MO
Mixing Antifreeze
This is a little off topic, but I wanted to ask people I trust. Besides others might run into this with their trucks.
My daughters car overflow tank is empty. So I was going to fill it but noticed blue in the bottom of the tank.
Is it OK to mix the green and blue antifreeze. I have a bunch of green handy. Or do I bite the bullet and go find some blue?
My daughters car overflow tank is empty. So I was going to fill it but noticed blue in the bottom of the tank.
Is it OK to mix the green and blue antifreeze. I have a bunch of green handy. Or do I bite the bullet and go find some blue?
Fleet Mechanic
Joined: Jun 2020
Posts: 1,907
Likes: 763
From: Hillsborough NJ
This is a little off topic, but I wanted to ask people I trust. Besides others might run into this with their trucks.
My daughters car overflow tank is empty. So I was going to fill it but noticed blue in the bottom of the tank.
Is it OK to mix the green and blue antifreeze. I have a bunch of green handy. Or do I bite the bullet and go find some blue?
My daughters car overflow tank is empty. So I was going to fill it but noticed blue in the bottom of the tank.
Is it OK to mix the green and blue antifreeze. I have a bunch of green handy. Or do I bite the bullet and go find some blue?
NO!!! Don’t mix antifreeze. They can chemical react and cause trouble, such as eating away at gaskets. I did that years ago in my sons car and ended up with coolant leaks costing quite a bit of heartache.
Hotshot
Joined: Oct 2009
Posts: 16,173
Likes: 4,780
From: Burbank, WA
What kind of car does your daughter drive that uses blue antifreeze? Some makes/models/years have very specific "rules". Some colors can be mixed, others are a big no-no. Like Bob said, when in doubt, don't risk it.
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Lead Driver
Joined: Nov 2002
Posts: 9,679
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From: Jefferson City, MO
She drives a 2016 Nissan Altima. I will go find the blue stuff. I did a little google search and quite a few people said blue/green was ok but I had reservations. Although since I have a bunch of green I figured I would ask.
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