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Another New Coolant -- Longer Life & Less Maintenance
Ford switched to a new fluorescent-ish yellow coolant for F250s and 350s built starting July 9. The new coolant is used for both the diesel and the gasser. The OM Information Supplement that came with our new 2019 F350 states the original factory fill is good for 200K miles or 10 years, WCF, 100K miles or 5 years for subsequent fills, and that no coolant corrosion inhibitor, additive strength check, or additive is required.
Here's a pic of the new stuff in our new truck's degas bottle:
Why does everyone have no trouble believing that this new coolant can go 200,000 miles, but cannot believe that modern oils can't last more than 3000 miles?
I wonder if the new coolant is waterless? If so, conversion requires flushing with a scavenging prep fluid first to remove all the remaining water based antifreeze.
I wonder if the new coolant is waterless? If so, conversion requires flushing with a scavenging prep fluid first to remove all the remaining water based antifreeze.
No it’s still an ethylene glycol based fluid. Low phosphate. Orange is called OAT, yellow is P-OAT. You can buy it in a concentrate or premix.
NOTE: Mixing OAT and P-OAT coolants is not recommended. P-OAT coolant is compatible with OAT coolant; however, coolant service interval will be difficult to determine when the coolants are mixed. For this reason, Ford does not recommend mixing OAT and P-OAT coolants.
09-03-2018, 10:58 AM
Another New Coolant -- Longer Life & Less Maintenance
