(800) 853-2651
SHOP NOW

6.9 diesel antifreeze

T

TDJD

Member
Im changing the coolant in my 6.9 diesel F350. Is it ok to use the JD coolgard 50-50 mix it the truck? Or do I need to use something special? Thanks
 
The JD coolant should be good. Best thing you can do for that 6.9/7.3 is anually check the coolant properties with a test strip and add correct the cca as needed.
 
Get that Dex out of their, i changed mine over to Ethyleen Glycol, and on the the North Star engine too!Not a problem yet with either!!
 
Are you saying not to use the John Deere antifreeze?
And what brand are you suggesting I use instead?
 
Pink SCA (DCA-2) precharged coolants such as Fleetcharge. That stuff is essentially green low silicate coolant, that has had it's color changed to pink to indicate the presence of the DCA-2 SCA. Jim
 
Any normal antifreeze, Zerex, Prestone, store brands will be fine on a 6.9 and 7.3L IDI engine, the ADDITIVE is what is important. My Ford store sells Fleetrite brand, not the expensive stuff in Ford bottles. FLEET-RITE DCA ( diesel coolant additive) is fine, it's a bright blue color, same stuff in the Ford bottle, there's instructions on the bottle how much to add. My Powerstroke held 32 quarts, think I used 4 or 5 bottles of DCA on a drain & flush. I bought a bottle of FLEETRITE test strips too. Check coolant every oil change, flush & refill every 100,000 miles.
I have no experience with DCA-2 Pink? SON is running some brand of extended life coolant in my PSD now, the copper injector cups in the 7.3 PSD are not supposed to be compatable with the extended life coolants but he hasn't had a problem and it's been over a year. And anywhere you see the inside of the cooling system everything looks completely clean, like when SON put a new water pump on my old truck a year ago. Thats TWO waterpumps on it now. Factory pump replaced at 128,000 miles, last year's around 310,000 miles.
 
> Get that Dex out of their, i changed mine over to Ethyleen Glycol, and on the the North Star engine too!Not a problem yet with either!!

> Sorry to pop your bubble, FFA, but Dex-Cool IS ethylene glycol. Hopefully you used an organic additive technology (OAT) antifreeze, which of course is what Dex-Cool is.
 
I use the Coolgard in everything here.I figure if it is good enough for a $600k tractor or combine its good enough for anything I own. It does have a tendency to find leaks that might not have been noticed before though. Also assuming you did a thorough flush before putting in new coolant.

Your Deere dealer should have the test strips and additives for future adjustment if needed.
 
Coolgard 2 is good for 6000 hours or about 270,000 miles when you scarp the truck save the antifreeze for the next one
 
I didnt do a flush. Right now the radiator is in the shop getting a leak fixed, and pressure tested. How should I flush the system?
 
The radiator is being repaired now. When I get it back in, do you recommend I should flush it? Also, how do you recommend I do a flush?
 
You must log in or register to reply here.

Similar threads

2
Mixed fleet antifreeze recommendations
Replies
8
Views
440
4play
4
Gary Mitchell
50/50 antifreeze
2 3
Replies
40
Views
906
caterpillar guy
C
3
Welding rods left out in the rain
2
Replies
30
Views
2K
Keith Molden
K
F
Ford Jubilee - oil/fluids
Replies
6
Views
264
Ford Jubilee
F
R
Ferguson 135 diesel wont run
Replies
9
Views
447
Rick Beament
R
Tractor Parts Tractor Manuals

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Copyright © 1997-2024 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters
Website Accessibility Policy

Back
Top