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3rd party Coolant for XK8?

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The Jaguar-brand coolant is very expensive.  The instructions specify to use an Orange coolant, which is not available at local auto parts stores.

However, there is a coolant that says it can be used with any car or truck and any color coolant (Prestone 50/50 PreDiluted Antifreeze/Coolant).  It is available for less than $10/gallon.

Does anyone have any experience with this coolant?  Alternatively, can anyone recommend a coolant?

Thanks in advance, Jeff


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I use this in mine. It's about £10 a litre and I buy from Opie Oils here in the UK,  ( via eBay )a reliable and respected supplier of oils and fluids.

Whether or not it's available in the US is of course another matter. Opie will send to the US but I dread to think what the cost may be.

Motul Inugel Optimal Coolant / Antifreeze





Nitrite free, amine free, phosphate free, borate free, silicate free.
Color Visual Orange fluo
Density at 20°C/68°F ASTM D4052 1.056
PH ASTM D1287 8.4
Initial crystalization ASTM D1177 -27.5°C/-17.5°F
Freezing Protection -37°C
Pour Point ASTM D97 -32.5°C/-26.5°F
Boiling Temperature 134°C/273°F (+1.5 bar)
Alkalinity Reserve ASTM D1121 2.4 mg KOH/g



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That is considerably more expensive than the 'universal' coolants here in the US.  The Prestone I listed is $8.89/gallon, which works out to about £1.77/litre.  Since I started this thread, I have found some Orange coolants that are about twice as expensive.  I just have to track down a local supplier.




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Looks like you have better prices there than we have here ! Took me a while to find this one so I was just pleased to find it. Since then I've been told that Ford use the same stuff so a visit to a Ford dealer may give you some results.

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  • 1 year later...

I am embarrassed that I did not notice this earlier, but there is a notice right next to the filler port to use Orange antifreeze.  Depending on where you get it here in the United States, it is generally available for between $14 and $20 per pre-mixed, ready-to-use gallon.




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