Mix 2 diff coolants? - PowerStrokeNation : Ford Powerstroke Diesel Forum
 
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post #1 of 3 (permalink) Old 12-08-2011, 08:37 PM Thread Starter
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Unhappy Mix 2 diff coolants?

I put zerex hd elc in it about 4 months ago and I just did an egr cooler delete and I'm low now and I can't find zerex anywhere now can I put rotella hd elc in it to top it off? One is bright red other is bright orange almost red

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post #2 of 3 (permalink) Old 12-09-2011, 07:35 PM
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Re: Mix 2 diff coolants?

As long as they are both HD ELC CAT EC-1 rated... no issues should occur...

I've dealt with the Rotella ELC but not the ZereX... As long as it's these 2...

Valvoline.com Zerex¬ģ Extended Life Antifreeze / Coolant

http://s7.cdn.hardwareandtools.net/s...oom7&locale=en

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post #3 of 3 (permalink) Old 12-10-2011, 05:26 PM
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Re: Mix 2 diff coolants?

Quote:
Originally Posted by mcdaniel1991 View Post
I put zerex hd elc in it about 4 months ago and I just did an egr cooler delete and I'm low now and I can't find zerex anywhere now can I put rotella hd elc in it to top it off? One is bright red other is bright orange almost red
Yeah you can mix EC-1 rated coolants...same basic chemistry. Most ELCs can actually tolerate up to 15-20% non-ELC coolants so you should be just fine mixing a par of ELCs.

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