Dark antifreeze

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Sep 21, 2009 | 04:56 PM

ricardo sandoval

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Joined: Nov 2006

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From: SAN DIEGO, CALIFORNIA

Dark antifreeze

I have a 98 ranger 4.0 my problem is that the resorvour of the antifreeze is clean and i put new antifreeze and 5 or 10 days later the antifreezze star to put darker and darker.

What should i do

RICARDO

Sep 21, 2009 | 07:46 PM

g_k50

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Joined: May 2004

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pressure check the cooling system with the engine at operating temperature. If it leaks down, you have a leak, if it holds just flush your cooling system and change your antifreeze.

Sep 22, 2009 | 07:46 AM

Traxxis

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From: Claremore

Have you ever completely changed the fluid? Many people often forget, or neglet the coolant system until something is wrong. Having said that, antifreeze is like oil... it does eventually go bad (albeit not as fast), and should be changed after 50, 75 or 100k miles or so.