Engine Coolant? - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 17 (permalink) Old 03-26-2007, 09:40 PM Thread Starter
 
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Engine Coolant?

How often should you flush your cooling system on these trucks? Somebody told me that the diesel engines require a shorter flushing interval for the coolant? What kind of anti-freeze is the best for my 7.3? I went to the dealer to price antifreeze, and they said that there were two different types that Ford put in them depending on where the truck was assembled? What is the significance of that? Does it matter which type I go back with when I flush my system?
Thanks,
Ryan
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post #2 of 17 (permalink) Old 03-27-2007, 01:25 AM
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Just look in the coolant reservoir just above and to the right of the fan shroud. You should see either green or gold coolant. Nearly all '02 models had the gold. You can verify that if you have an "E" in your vin code, or if your truck was built in Kentucky.

As for service. Both should be flushed at 100K miles. The green coolant requires additives to be put in, and using test strips will tell you when it's necessary. The gold coolant requires no additives or testing.
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post #3 of 17 (permalink) Old 03-27-2007, 01:30 AM
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Quote:
Originally Posted by Pocket
As for service. Both should be flushed at 100K miles. The green coolant requires additives to be put in, and using test strips will tell you when it's necessary. The gold coolant requires no additives or testing.
Green should NOT be flushed at 100k, it is NOT extended life coolant....Green should NEVER go over 30k, it will breakdown chemically....

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post #4 of 17 (permalink) Old 03-27-2007, 01:45 AM
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I don't know of anyone flushing green coolant every 30K on a Superduty.
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post #5 of 17 (permalink) Old 03-27-2007, 01:48 AM
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Quote:
Originally Posted by Pocket
I don't know of anyone flushing green coolant every 30K on a Superduty.
whether anyone is doing it or not, green is 30k coolant, always has been.....:Thumbup:

e99 leveled on 35s
250/80, modded s300, studs, springs, push rods, adrenaline, swamps tuning, racerx trans
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post #6 of 17 (permalink) Old 03-27-2007, 02:00 AM
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what additives are to be put in the green?

04 Ford F250 4x4 Crew Cab Long Box ZF6 Manual.
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post #7 of 17 (permalink) Old 03-27-2007, 02:30 AM
 
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Quote:
Originally Posted by Pocket
I don't know of anyone flushing green coolant every 30K on a Superduty.
Hi, my name is Ashley, and i flush my coolant every 25,000 miles. Now you know someone!!!!!
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post #8 of 17 (permalink) Old 03-27-2007, 02:31 AM
 
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Quote:
Originally Posted by circle5
what additives are to be put in the green?
A standard SCA (supplemental coolant additive), most parts places and dealerships have them. I put in two 16oz. bottles with every flush.
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post #9 of 17 (permalink) Old 03-27-2007, 02:57 AM
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I guess I'm screwed, I haven't changed my coolant yet with 88k. It will be done tomorrow.
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post #10 of 17 (permalink) Old 03-27-2007, 03:04 AM
 
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Put an SCA in it and you'll be good to go.
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