Can anybody recommend a brand of coolant that meets Jaguar specs? (1999 Jaguar XK8 coupe)

 

My understanding is that the engine cooling system was designed for fluids sold under the DEX-COOL brand. You should have no problem locating it.

 

The ONLY thing that matters is that the coolant meet the required spec as mentioned in the owners manual. You must ensure that the coolant you're considering mentions that spec. It's written either on the front or back label. Takes all the confusion out of the selection. Brand name, type, colour, price are all secondary.

 

Documentation is here: Vehicle Specification 97-03

Coolant to be used depends on the VIN, apparently.

I would definitely check what is in there already, just to be sure. Mixing types can lead to a gel that clogs the system.

 

I think the main concern is just not mixing anything else with the Dexcool. However, If a previous owner drained and flushed out the Dexcool and replaced it normal coolant then you certainly don't want to add Dexcool regardless of the specifications. Under that condition you might have to do another drain & flush before returning to Dexcool.