Ford Super Duty Owner's Manual

Ford doesn't make the orange coolant anymore and the yellow coolant is backwards compatible. Meaning you can mix the yellow with the orange. I don't believe Ford sells a booster for the yellow since it already last extremely long. The OP is purchasing a new 2021 Super Duty so it will come with Yellow coolant so the orange coolant is no longer a issue.

That's good info since coolant is the next fluid change on my list, I've done trans, differential and transfer cases. All easier than I expected

MFL wrote:
Disconnecting the battery requires more computer learning, and supposedly engine will not start, if battery is not at state of charge to operate all electronics.

I will be changing out my battery soon, due to it being a bit weak. The manual says part of learning process, after running engine at idle to complete warmup, you need to put in gear, idle one minute, then turn air conditioner on, allow another one minute of idle, then drive around for another 10 miles.

I understand the idle learning, while AC is turned on, but it is currently 11 degrees below 0 F, and I would wonder if the AC would even function normally, to relearn idle properly?

Would the lowest tech at the Ford dealership, installing the new battery know to jump through all these hoops listed in the manual, or would he just swap batteries and GTG?

I'm thinking like many things, might be best to change it myself, then it would be done as described in the manual.

Jerry

Back in the 90s we had a 9 volt battery attached to a cigarette lighter plug-in to keep some voltage in the system while swapping out batteries. It was mainly for radio presets. I have no idea if it would work on a newer vehicle but something you could look into.

agesilaus wrote:

The coolant test was really in case someone topped off the coolant bottle with the wrong coolant. Ford has switched from the Orange coolant to a new Yellow coolant that last even longer so I doubt a recharge is necessary.

Be careful with that, the older, 2012 trucks, call for orange unless the yellow is an approved substitute. And the coolant tests detect weak coolant and Ford sells a concentrate that you can add to boost the coolant concentration. Comes in a liter bottle

Ford doesn't make the orange coolant anymore and the yellow coolant is backwards compatible. Meaning you can mix the yellow with the orange. I don't believe Ford sells a booster for the yellow since it already last extremely long. The OP is purchasing a new 2021 Super Duty so it will come with Yellow coolant so the orange coolant is no longer a issue.

The coolant test was really in case someone topped off the coolant bottle with the wrong coolant. Ford has switched from the Orange coolant to a new Yellow coolant that last even longer so I doubt a recharge is necessary.

Be careful with that, the older, 2012 trucks, call for orange unless the yellow is an approved substitute. And the coolant tests detect weak coolant and Ford sells a concentrate that you can add to boost the coolant concentration. Comes in a liter bottle

4x4ord wrote:

kellem wrote:
I find it intriguing that everytime I purchase a new truck that the maintenance intervals have increased substantially.

My 2021 SD manual is saying 150K antifreeze....something we use to change annually.

Is a periodic test and coolant additive recharge required?

The coolant test was really in case someone topped off the coolant bottle with the wrong coolant. Ford has switched from the Orange coolant to a new Yellow coolant that last even longer so I doubt a recharge is necessary.

Yes, you can buy test kits on amazon

kellem wrote:
I find it intriguing that everytime I purchase a new truck that the maintenance intervals have increased substantially.

My 2021 SD manual is saying 150K antifreeze....something we use to change annually.

Is a periodic test and coolant additive recharge required?

Grit dog wrote:

Lynnmor wrote:

4x4ord wrote:
Anybody come across anything interesting reading your owner's manual?

I find it interesting that you are to oil the lug nuts a certain way, do you know of anyone that ever does it and does it right?

To the chagrin of the rvnet lug nut torque police, I’ve been using anti seize on all wheel lugs for a good 30 years now....

You obviously never read a Ford truck owners manual or you would know that we Ford owners have better nuts.

Manual wrote:
On all two-piece flat wheel nuts,
apply one drop of motor oil between
the flat washer and the nu

Just to reveal the secret, 160 ft-lb og torque. P347

Disconnecting the battery requires more computer learning, and supposedly engine will not start, if battery is not at state of charge to operate all electronics.

I will be changing out my battery soon, due to it being a bit weak. The manual says part of learning process, after running engine at idle to complete warmup, you need to put in gear, idle one minute, then turn air conditioner on, allow another one minute of idle, then drive around for another 10 miles.

I understand the idle learning, while AC is turned on, but it is currently 11 degrees below 0 F, and I would wonder if the AC would even function normally, to relearn idle properly?

Would the lowest tech at the Ford dealership, installing the new battery know to jump through all these hoops listed in the manual, or would he just swap batteries and GTG?

I'm thinking like many things, might be best to change it myself, then it would be done as described in the manual.

Jerry