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6.0L Power Stroke Diesel 2003 - 2007 F250, F350 pickup and F350+ Cab Chassis, 2003 - 2005 Excursion and 2003 - 2009 van

Head-gasket Project

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Old Sep 27, 2016 | 07:12 AM
  #1  
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BigJohn61
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Head-gasket Project

Well it is finally coming down to getting my Girl back on the road and need some advice on fluids.

I've been doing some research and I was originally going to go with the MotorCraft Gold coolant. Now I am hearing that there is a silicate additive in it that at higher temps or over a prolonged period "Drops Out" and is one of the main causes of the oil cooler failures. I've been told that I should be using a "Cat 1" type coolant? Any comments either way would be appreciated.

Next, while I have her up on blocks, so to speak, I am going to do a transmission service (automatic). I've heard good things about Royal Purple, but have never used it.
Any and all comments would be appreciated. She only gets driven on the weekends, I have a company truck that takes the brunt of the mileage. I do tow a 22' trailer moving equipment occasionally and various other things when needed.

As usual I appreciate you guys and any advice you can offer.

BigJohn
 
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Old Sep 27, 2016 | 11:26 AM
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Use a mercon sp or lv fluid in the transmission only.
 
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Old Sep 27, 2016 | 11:44 AM
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Originally Posted by BigJohn61
I've been told that I should be using a "Cat 1" type coolant? Any comments either way would be appreciated.
International designed the engine and said "use a Cat EC-1 rated coolant".

Ford installed the engine and said "G-05 is good enough".

Change the Gold stuff every 30k if you use it, per Ford's updated maintenance schedule. It doesn't really matter, go with what you feel.
 
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