Yes, they did because my '01 has the orange and it clearly states in the factory service manual to ONLY use the orange. I had a run in with my dealer over this when I had a flush and they put green back in.2k2_AtlanticBlu said:They must have changed that at somepoint because my '02 came with the orange stuff from the factory.
Long story short, the service manager and I got the Chrysler Engineer for the cooling systems on the phone and he said to use the orange, it was the preferred coolant for the 4.7L. We asked if we could use the green. He said yes you can use it...but its not recommended.
So, from the engineers who designed the cooling system...use ORANGE.
The service manager was actually surprised by the engineers answer...he thought for sure the engineer was going to say they only used the orange for longer maitenance intervals, not because its a better coolant for the 4.7L.
You also can't mix the green and orange, you must flush the coolant system completely if you're switching from green to orange. Plus you must use only distilled water with the orange. Actually you should always use distilled water with any coolant as tap water will cause you're radiator to scale up.