Thanks for the help. So after replacing the thermostat, I thought I needed the yellow antifreeze. I bought a jug of Zerex G05, which even states on the bottle that it was good for Ford and Jaguar from 1996 on. I thought it was a match!
So before I added coolant, I compared what I lost…it was green-ish. I know what green coolant looks like, and although it was definitely green compared to the Zerex G05 I purchased, I suspected it is not green coolant.
I purchased a jug of Prestone Universal Coolant. Wouldn’t you know that it seems to match what’s in there.
Why don’t I know what’s in there? After having the car stolen and losing the radiator, I filled it up with what I had on hand (wolfs head universal) just to get it over to a Jag shop. They ended up flushing it and replacing it…I guess I should have asked them what they used?
Lastly, TSB 26-17, dates 4/98 revised the coolant to yellow type D542, which superseded the old blue/green D985. I don’t believe I ever saw a change to orange.