Coolant Options

Keith, no need to make individual post to the various responses especially when they are ther same. You can reply to any and all posters in the one post.
I hope Jiffy lube are correct in their statement that the coolant will not cause any solidification/Jellyfiying of any coolant that remained in the system.

Regulations specify mixability of liquids, Keith, originally required by the military - you’ll be all right…:slight_smile:

However, take time to check for leaks before doing anything more…

xj6 85 Sov Europe (UK/NZ)

Tap water not te best. Dependent on area, it can be very heavily mineral laden to only somewhat. use distilled water.