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AJ16 Engine Coolant

Aidan
Posts: 728
Joined: Fri Jun 26, 2009 11:57 am
Location: Tonbridge, Kent

AJ16 Engine Coolant

Postby Aidan » Sun Sep 15, 2019 5:28 pm

Hello,

Does anyone know what antifreeze is compatible with the AJ16 3.2 litre engine? The handbook says it has to be "Jaguar Anti-freeze, Coolant and Corrosion Inhibitor conforming to specification ESD-M97B49-A" which is actually a Ford Specification. Opie recommends Motul INUGEL EXPERT Car Antifreeze to match that specification.
I'm just wondering if there is another suitable product used by other owners with the X300 AJ16 engine which is available from Halfords etc?

Thanks
Aidan

1994 Moroccan Red XJ40 3,2 Sport ("Ruby")
1995 Jade Green X300 3,2 Sovereign ("Jade")
2005 Cedar Green Pearl Volvo XC 90 SE

katar83
Posts: 2741
Joined: Tue Aug 23, 2011 11:17 am
Location: Cambridge

Re: AJ16 Engine Coolant

Postby katar83 » Mon Sep 16, 2019 8:26 am

Any antifreeze will be fine as far as you change it every now and then a bit like with oil. What I found most important was actually flushing the system last year.
I've basically ran the car with radiator cleaner for a few days, then fully emptied it, added water again, ran the car untill fully warm with heating at max and then emptied again.
Took 10 such cycles to finally see clean water coming out of the radiator.
A lot of people owning x300 complain about subpar heating and engine temp going way past the middle on the dial. Mine would never do it, even in traffic with rad fans disconnected and heating in winter can get toasty to uncomfortable levels.
1997, 4.0 LWB X300 - Unlucky car but still a daily driver.
1988, 3.6S XJS - Never ending restoration project.
1994, 3.2S X300 - Accident damaged, October 2015. Gone!
1994, 3.2S XJ40 - Long gone.

Aidan
Posts: 728
Joined: Fri Jun 26, 2009 11:57 am
Location: Tonbridge, Kent

Re: AJ16 Engine Coolant

Postby Aidan » Tue Sep 17, 2019 10:16 am

Thanks for the advice, Katar. I'll just top it up for now with whatever I have and then do a full flush when I have the opportunity.

Regards
Aidan

1994 Moroccan Red XJ40 3,2 Sport ("Ruby")
1995 Jade Green X300 3,2 Sovereign ("Jade")
2005 Cedar Green Pearl Volvo XC 90 SE