I have an 04 WJ with the 4.0 engine and I wanted to flush the system soon, just got it not too long ago, and wasn't sure if it mattered? Owners manual says to use MOPAR but I wanted a more reliable opinion from some WJ owners. Thanks!
1999 WJ - Over 10k on the 4.0 rebuild. FB/BDS 2" lift (2.5") w/Bilstein 5125's. General Class Ham...KC0LUA
Burlbook48 sez "Nothing moves a project along faster than cubic dollars." Certified Thread Killer.
Anything wrong with Prestone add to any color antifreeze?
No, people will tell you otherwise but the add to any color stuff has a bunch of different additives that allow it to replace and mix with all types of antifreeze. I have it in my 4.7. Mine had the original 10 year old (102K miles) HOAT coolant in it and it was beyond disgusting. Flushed it out really good and filled it with Prestone universal 50/50. It was so nasty inside I am considering flushing it again before summer comes just to make sure all the sludge is out. Contrary to popular belief regular green coolant will not eat up the aluminum due to its formulation but because its fast acting corrosion inhibitors (silicates and phosphates) are used up more quickly than OAT or HOAT which are slower acting but last longer because of these facts if you do not change the old formulation green stuff every 2-3 years it no longer prevents corrosion like it did when new.
it was about 20 for a gallon of concentrate.
Worth it in my opinion, i dont want to risk potential corrosion due to skimping out on 5$
I've seen a few gc on here that have such bad corrosion they needed new timing cover and gets costly