Question about 2003 Dodge Neon

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Need to put antifreeze in the radiator of my dodge neon. Do I have to drain it first or is there a way to get antifreeze in it without draining it. And if I do have to drain it where is the plug?

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  • Rob Bruce May 11, 2010

    Why are u putting in anti freeze??? do u have a leak or just wanting to "top off" the level?



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The drain plug is at the bottom of the radiator on the passenger side. I see no reason to drain it all out unless you just want to change it. If you do our Neons take the orange radiator fluid Havoline "Dex-Cool" invented by Havoline. It has a very bad taste added to it to protect children and pets. I changed it at 74000 in my wife's 2003 Neon SXT using a 50/50 mix of Dex-Cool and distilled water to avoid any scaling residue.

Our Neons cannot use any other type as it will ruin the internals of your engine the coolant comes into contact with.
The anti freeze is to be changed at 100,000 miles. If your coolant reservoir tank (located in the engine compartment on the drivers side just under the windshield large white plastic bottle) is always filling up over time and spilling over you may need a new radiator cap.

The radiator cap lets some of the coolant out in to the reservoir tank as you drive and the coolant expands due to heat. When your radiator cools off a vacuum is created inside of your radiator at that time your radiator cap is to open it's valve and **** the coolant from the reservoir tank back into the radiator via the small hose that leads from just under your radiator cap to the reservoir tank.

Make sure the hose leading from just under your radiator cap to the reservoir tank has a tight seal at both ends as well as no leaks.

If your cap is not operating properly it will just keep letting coolant out and not letting the radiator **** it back in resulting low coolant level in the radiator.

Posted on Dec 26, 2008

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There shuld be a drain plug on the bottom of your radiator, if not pull off the bottom hose and drain it that way. If it has antifreeze in it now drain into a pan or bucket. DO NOT let any dogs or cats around it, they will drink it and DIE. Also check for condition of hoses if bad, replace both of them. Hope this helps

Posted on Dec 16, 2008

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If just topping off.... just add the anti freeze. no draining necessary unless you are running just water in there currently. remeber tho.. its a 50% water to 50% coolant/ anti-freeze at minimum or just buy a bottle of the 50/50 pre mix stuff.

Posted on Dec 16, 2008

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