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Posted by Steve Barker on October 24, 2007, 9:35 am
It's the lubrication properties that wears out. BUT, a can or bottle of
good quality water pump lube will restore what you need. No need to change
the antifreeze if it's clean.
s
>A couple weeks ago I posted this que' on a couple auto type NG's & didn't
>get a response (Very slow NG's).
>
> 2002 F150, have never changed antifreeze. I don't need antifreeze to
> protect against temp's (warm climate). But, I have heard it is important
> to change antifreeze because the it wears out.
>
> What wears out, the temp protection or is there a lubricant that wears
> out?
>
> How much to drain out, and how? One guy told me to drain a gallon and put
> in a new gallon? That doesn't sound right to me.
>
> Is it important to get all the old coolant out?
>
> Thanks for any advice.
>
> Bob-tx
>
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