I've searched quite a bit but still can't find any direct info. I just got a 2011 F-350 with the 6.2L and the maintenance history is unknown. It has about 62K on it and I'm going to change the oil & filter, coolant, transfer case, and diff fluids. I am selling my 6.0L diesel Excursion and I went through the change from the Ford Gold coolant in it to CAT ELC-1 as many have done. I know the 6.2L gas motor is a completely different animal, but I was wondering about the coolant (Ford Orange).

I've read about the differences, etc., but what I can't find is if anyone has experience of completely flushing the orange out and replacing it with the regular green stuff. My family and I will be traveling and living full-time in a RV and I got the gasser since I'm tired of diesel maintenance and repair expenses, plus I want the truck to be able to be worked on about anywhere with more common parts. I know mixing coolant types is a no-no, and I've dealt with Dex-Cool sludge in 2 Pontiacs.

The 6.2L is an iron block/aluminum head motor, nothing weird. There have been plenty of iron block/aluminum head motors running the green stuff without issue for decades. Can anyone point out any downsides of changing, other than more frequent coolant change intervals? TIA!

 

.
stay with any 5 year "long Life" anti-freeze...

always flush out old.. regardless of color.

 

Well the Ford orange is a very common coolant available everywhere. I see green coolant as a giant step backwards and no benefit. The ford orange is the same spec as Dex Cool.

 

After going down the rabbit hole of coolant types, additives, etc. (thanks, BITOG), I think I know what I plan to use. Not the old green stuff and not Ford Orange since I've had bad experiences with Dex-Cool in the past (yes, i know that newer engines don't have the issues old GMs did, but still...). Looks like Peak Final Charge meets all of Ford's specs, has no 2-EHA (deathcool), silicates, phosphates, nitrates, or borates, can have up to 25% of any other coolant mixed with it if necessary, and is rated for 8 years or 1,000,000 miles. Winner! I definitely plan on flushing it thoroughly with distilled water first. Thanks!