Lower hose on a 2.5, embarrassing coolant type mismatch

[isaac509]

This last Winter I did a bunch of maintenance on my '98 2.5TJ, including water pump, thermostat, and all the hoses.
I made the mistake of asking a certain chat program what kind of coolant the vehicle took, and believed the answer chapter and verse instead of cracking the factory service manuals that I own and have sitting here on the shelf.

As a result, the vehicle was filled with Zerex G-03 HOAT yellow coolant, after a diligent 2-3 flush cycle with distilled water to get all the old green coolant out.

Yes, I feel like an idiot.

Recently on a two week camping and off-roading trip, I hit another snag. The front axle rubbed on the new lower hose (Gates 22280) and wore a hole through it. The Jeep is stock suspension save for 31.5 tires.

All I could get in town was a Napa hose, I rotated it as far as I could up out of the way but it still rubs a little when driving on trails. I made a bandage out of the old hose and zip tied it on to get me through the trip, but I'm looking for advice on a more lasting solution.

Should I bother replacing the yellow coolant with green now that I've made the switch? I'm aware I'm going to have to flush the heck out of it again, and I'm willing to do it if it's better for the vehicle long term.

For the record, I've learned my lesson and will follow the manual and not newfangled technology when it comes to making decisions on this old vehicle.

Thank you,

- Eli

 

[Moglocker]

This last Winter I did a bunch of maintenance on my '98 2.5TJ, including water pump, thermostat, and all the hoses.
I made the mistake of asking a certain chat program what kind of coolant the vehicle took, and believed the answer chapter and verse instead of cracking the factory service manuals that I own and have sitting here on the shelf.

As a result, the vehicle was filled with Zerex G-03 HOAT yellow coolant, after a diligent 2-3 flush cycle with distilled water to get all the old green coolant out.

Yes, I feel like an idiot.

Recently on a two week camping and off-roading trip, I hit another snag. The front axle rubbed on the new lower hose (Gates 22280) and wore a hole through it. The Jeep is stock suspension save for 31.5 tires.

All I could get in town was a Napa hose, I rotated it as far as I could up out of the way but it still rubs a little when driving on trails. I made a bandage out of the old hose and zip tied it on to get me through the trip, but I'm looking for advice on a more lasting solution.

Should I bother replacing the yellow coolant with green now that I've made the switch? I'm aware I'm going to have to flush the heck out of it again, and I'm willing to do it if it's better for the vehicle long term.

For the record, I've learned my lesson and will follow the manual and not newfangled technology when it comes to making decisions on this old vehicle.

Thank you,

- Eli

I thought hoat was universal?

 

[mrblaine]

This last Winter I did a bunch of maintenance on my '98 2.5TJ, including water pump, thermostat, and all the hoses.
I made the mistake of asking a certain chat program what kind of coolant the vehicle took, and believed the answer chapter and verse instead of cracking the factory service manuals that I own and have sitting here on the shelf.

As a result, the vehicle was filled with Zerex G-03 HOAT yellow coolant, after a diligent 2-3 flush cycle with distilled water to get all the old green coolant out.

Yes, I feel like an idiot.

Recently on a two week camping and off-roading trip, I hit another snag. The front axle rubbed on the new lower hose (Gates 22280) and wore a hole through it. The Jeep is stock suspension save for 31.5 tires.

All I could get in town was a Napa hose, I rotated it as far as I could up out of the way but it still rubs a little when driving on trails. I made a bandage out of the old hose and zip tied it on to get me through the trip, but I'm looking for advice on a more lasting solution.

Should I bother replacing the yellow coolant with green now that I've made the switch? I'm aware I'm going to have to flush the heck out of it again, and I'm willing to do it if it's better for the vehicle long term.

For the record, I've learned my lesson and will follow the manual and not newfangled technology when it comes to making decisions on this old vehicle.

Thank you,

- Eli

I've encountered many situations where it was beneficial to have the lower radiator hose in some location other than where the stock length placed it. I've managed to move all of them to more readily be missed by whatever moving part was putting them in peril by simply shortening the straight section that is attached to the lower hose neck on the radiator in small increments until the proper clearance was achieved.

 

[KennethS]

Since you completely flushed the system, the coolant in there is OK. I use the same Zerex in my vehicles.

 

[reelbusy]

g30 or g-05? g-05 is what i see recommended and was presumably in my 03. But yeah all the coolant types are a freaking nightmare.

 

[KennethS]

As long as you have just one type and don’t mix them you’ll be OK.