I searched but not much info found.
Ok, 2001 Jeep 4.0L Grand Cherokee. 82k miles. It's time for coolant replacement/flush. Just got it about 3 months ago and it has the green stuff, was last changed at 51k. It doesn't look bad but I believe in sticking to schedules so it's time..
Now, the information I can find says:
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The recommended mixture is 50/50 ethylene-glycol and low mineral content water. Never use pure antifreeze. Only Mopar Antifreeze Coolant, 5 Year/100,000 Mile Formula (glycol base coolant with corrosion inhibitors called HOAT) is recommended. This coolant offers the best engine cooling without corrosion when mixed with 50% distilled water.
Antifreeze mixture must always be at least 44%, all climates year round. Maximum protection (-90d) is provided with a 68% mixture protection. If the percentage is lower than 44 percent, engine parts may be eroded by cavitation, and cooling system components may be severely damaged by corrosion.
CAUTION: Mopar Antifreeze/Coolant, 5 Year/100,000 Mile Formula (MS-9769) may not be mixed with any other type of antifreeze. Mixing of coolants other than specified (non-HOAT or other HOAT), may result in engine damage that may not be covered under the new vehicle warranty, and decreased corrosion protection.
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This being said, the vehicle has had 2 changes , at 30k and again at 51k. Both times plain green was used.
Now, the coolant looks bright green, no oil present, etc.. Should I spring for either a G-05 flush at a Jiffy Boob type place, do it myself with plain green premix from walmart, or get the specified brew from the Jeep dealer? If I do it myself, I know I'll have to drain and replace a couple of times since I can't get the block drain plug out and the system holds about 15qts.
If she were yours, would you: plain green premix like it has been having (done myself), or G-05 flush with a machine, or home replacement with g-05 in my driveway?
I know the least critical would be myself doing it with plain green since it would not be super critical that I get ALL the old out since I'd be replacing with like stuff. I still plan to swap every 30k regardless.
Any tips are appreciated!
Ok, 2001 Jeep 4.0L Grand Cherokee. 82k miles. It's time for coolant replacement/flush. Just got it about 3 months ago and it has the green stuff, was last changed at 51k. It doesn't look bad but I believe in sticking to schedules so it's time..
Now, the information I can find says:
--------------------------------------------
The recommended mixture is 50/50 ethylene-glycol and low mineral content water. Never use pure antifreeze. Only Mopar Antifreeze Coolant, 5 Year/100,000 Mile Formula (glycol base coolant with corrosion inhibitors called HOAT) is recommended. This coolant offers the best engine cooling without corrosion when mixed with 50% distilled water.
Antifreeze mixture must always be at least 44%, all climates year round. Maximum protection (-90d) is provided with a 68% mixture protection. If the percentage is lower than 44 percent, engine parts may be eroded by cavitation, and cooling system components may be severely damaged by corrosion.
CAUTION: Mopar Antifreeze/Coolant, 5 Year/100,000 Mile Formula (MS-9769) may not be mixed with any other type of antifreeze. Mixing of coolants other than specified (non-HOAT or other HOAT), may result in engine damage that may not be covered under the new vehicle warranty, and decreased corrosion protection.
--------------
This being said, the vehicle has had 2 changes , at 30k and again at 51k. Both times plain green was used.
Now, the coolant looks bright green, no oil present, etc.. Should I spring for either a G-05 flush at a Jiffy Boob type place, do it myself with plain green premix from walmart, or get the specified brew from the Jeep dealer? If I do it myself, I know I'll have to drain and replace a couple of times since I can't get the block drain plug out and the system holds about 15qts.
If she were yours, would you: plain green premix like it has been having (done myself), or G-05 flush with a machine, or home replacement with g-05 in my driveway?
I know the least critical would be myself doing it with plain green since it would not be super critical that I get ALL the old out since I'd be replacing with like stuff. I still plan to swap every 30k regardless.
Any tips are appreciated!