hello,

the owner's manual in my car calls for ESD-M97B49-A antifreeze/coolant.

I cannot find this spec anywhere ... has it been replaced by a new updated version? There is a very large selection of coolant/antifreeze at the store and I'd like to know which one to pick.

also, is there a bleeding screw on the 4L cars to bleed the air after a coolant change?

Thanks

 

Jaguar info here.

bob gauff

 

thank you.. so the coolant is a dealer only product? I cannot use any off the shelf brands?

 

FWIW, when I bought my XJR a few years ago it old school green coolant in it. That's all I've ever used since.

If anything bad is supposed to happen I haven't seen it.

Cheers
DD

 

Searched the forums, I have the same question. Sorry to dig up a thread from 2011...

As per the TSB above, I need to drain and refill with D542. Is this the same as G13 (or G12++, ...), can I use an off the shelf antifreeze?

 

I just use the ford branded orange coolant. our X308 was made during the Ford ownership.

 

Hi Vincent,

Note that this is the X300 forum and this thread is very old. The X300s were not originally filled with orange OAT coolant but with conventional blue-green ethylene glycol IAT coolant (Dow 985/Jaguar D985). Subsequently they were updated to yellow Dow 542 coolant (Jaguar D542).

Orange OAT coolant should never be mixed with these earlier coolants due to the possible formation of precipitation/sludge, shortened life or neutralization of the corrosion inhibitors, and other possible adverse reactions. There are plenty of posts in these forums about the warnings from Jaguar and other automakers against mixing IAT, OAT or HOAT coolant types.

Converting an X300 to orange OAT coolant requires a thorough flush to ensure none of the old coolant remains in the system, and note that OAT coolants do not protect metal water pump impellers from electrolysis or cavitation erosion.

Cheers,

Don

 

99% of the cars on the road are running some other kind of OAT coolant in their system, IAT conventional coolants have been phased out of years and are intentionally hard to find. Do a couple drains and fills and you're good to go.

Glysantin G64, sold as "Zerex Original Green" is what I'd use to replace whatever is in there. G05, G43, G12 Evo and the newer Japanese phosphated coolants are all excellent choices.

 

I don't know about your area, but in ours there are plenty of domestic, Asian and European cars still using conventional green ethylene glycol, which is available at all of our local auto parts stores, so it's easy and cheap to continue using it in Jags for which it was originally specified.

I agree that Zerex Original Green is a good choice for cars that use conventional ethylene glycol. However, G-05, G-12 (Zerex G-40/Pentosin SF) and many of the Asian coolants use HOAT corrosion inhibitors and must never be mixed with any IAT or OAT coolant.

I recently had to spend hours cleaning the entire cooling system of a 2013 Jeep in which HOAT (Zerex G-05 equivalent) had been mixed with OAT (Dex-Cool equivalent) by technicians in the dealership service department, apparently because they forgot that Chrysler had changed from HOAT to OAT that model year. The resulting white-gray precipitation had nearly completely clogged the heater core and lined much of the rest of the system.

It doesn't pay to use any type of coolant other than the one specified by the manufacturer, unless a complete and thorough system flush is done first, and only if you know if the coolant you intend to use is safe for the various metals, plastics, rubbers and water pump impeller material used in your cooling system. Following the manufacturer's recommendations is the safest route.

Cheers,

Don

 

Zerex's "Original Green" is a HOAT coolant with all the normal IAT additives stacked on top. Phosphates, Nitrates and Silicates in the same package.

Fiat Chrysler's new OAT is a mystery and really doesn't play well with their old G05 for some reason. VW's G13 is an example of a (silicated) HOAT that is 100% compatible with their old G12 OAT and also dexcool, which is functionally identical.

 

The MSDS for Original Green does not disclose any organic or inorganic corrosion inhibitors that might suggest it is an OAT or HOAT. The only disclosed ingredients are ethylene glycol and diethylene glycol (which is typically present as a byproduct of ethylene glycol production). The link below is to the MSDS, and the snip below is from the Product Information sheet, showing that it does contain some silicon as well as some ash, which is typical in IAT coolants:

Valvoline Zerex Original Green Antifreeze Coolant MSDS



What can you tell us that would make this an HOAT coolant?

Cheers,

Don

 

To address the original questions by "97xX306" -
: ESD-M97B49-A (Ford spec) is indeed the original spec advised on page 32 of the Car Care booklet for the X300 series. Unfortunately that spec is 24 yr old, however it has progressed to the current spec WSS-M97B44-D ( OAT type) The spec mentioned in the coolant update bulletin D542 also confirms to that spec. The previous spec. was D985 (IAT Type)
: The X306 has no bleed screw, not required, just follow instructions in the Service manual ( available to download on this site)

Regarding the discussion on IAT, OAT & HOAT, I attach Valvoline page outlining various Zerex coolant types. I have noted the Ford specs they meet under vehicles heading.
You will note that "Dex Cool" ( OAT Type ) is the only one that meets WSS-M97B44-D.
Here in Australia I have used Nulon Green in my X306 for 8 yrs with no issues.
Nulon Green is HOAT with low silicate, No Amine, Nitrite, or phosphate and meets Ford specs. ESE-M97-B44-A as does Zerex original.
I consider any coolant meeting either Ford specs WSS-M97B44-D or ESE-M97B44-A would be suitable for our vehicles, however the dominant message seems to apply DO NOT MIX COOLANTS.

John Herbert
(1996 Jaguar XJR)

 

Let’s bury this for good.

Ford ESD-M97B49-A can be substituted with G11. Modern G11/G48 either uses 2-EHA (dexcool acid) or sodium benzoate (softer G05 acid), depending on the manufacturer.

Glysantin recommends their G48 for vehicles that originally specced G11 and for those that used any kind of IAT, including Jag’s mystery D542 and D985 and whatever the Euro Fords used.

https://www.glysantin.de/sites/defau...pdf?1587037758


Long story short:

G05 or G48 is your best bet.

 

Hi xalty,

G-48 contains 2-Ethylhexanoic Acid (C8H15NaO2), which contains carbon and is therefore an organic additive, and Disodium Tetraborate (B4Na2O7), which does not contain carbon and is therefore an inorganic additive. The combination of organic and inorganic additives is what makes G-48 a Nitrite Amine Phosphate-free Hybrid Organic Acid Technology coolant (NAP-free HOAT). I'm attaching the MSDS from both Valvoline and BASF as well as the Data Sheet from Glysantin. Note that the Glysantin Data Sheet states that G48 has been "officially approved by" several vehicle manufacturers, but not included are Ford, Jaguar and Land Rover.

As has been repeatedly stated in this thread and many others, Jaguar's own recommended supersession for the X300 is to an Organic Acid Technology (OAT) coolant meeting Ford specification WSS-M97B44-D. The most commonly available coolant in the U.S. that meets this standard is Dex-Cool.

For vehicles that are still using conventional green IAT ethylene glycol, there is no problem continuing to use it as long as the correct change interval is observed, and this product is also widely available and inexpensive, at least in the U.S.

Since Jaguar recommends using either conventional green IAT or orange OAT, and since HOAT and OAT coolants must never to be mixed, why would you insist that an HOAT "is your best bet"?

Valvoline/Zerex, BASF/Glysantin and other aftermarket fluid makers are happy to recommend their products for the widest assortment of vehicles possible, but we've learned the hard way that their recommendations cannot be trusted. Valvoline is notorious for stating that one of its fluids is suitable for multiple vehicles for which the automaker specifies very different and sometimes incompatible fluids.

As far as I am aware, Jaguar has never recommended G-05, G-48, or any other HOAT coolant for use in any Ford-era model.

Cheers,

Don

 

Yes, switching to a WSS-M97B44-D spec coolant is absolutely an option after a flush. G05 and 11\48 have totally displaced conventional IATs in Europe. I use G05, it has all the traditional additives of an american IAT, with the added benefits of an acid and it's been proven to work with obselete coolants time and time again.

httil.rs/products/download/MSDS-83000C.pdf
ps://www.mpmo

https://peakauto.com/wp-content/uplo...nd-Coolant.pdf

Motorcraft VC-5 is the cloest you'll get to D985
https://seattleautomotive.com/files/...oncentrate.pdf

 

If you specifically look for JLM20404/3 at any parts retailer, it consistently cross references to the European Blue blends. European manufacturers market G11 and G48 as "conventional technology" for all old vehicles and pure IATs like VC-5 and Zerex Original Green do not exist over there at all. I've also ordered a 1L bottle the Jag stuff and I'll send it out to POLARIS labs for testing.

 

Further to the recent "coolant debate" I have attached a coolant chart I recently compiled.
Whilst preparing I noticed many contradictions with some products eg Nulon Red stated to meet both WSSM97B44D & ESEM97B44A, despite one approval
having NO silicate (OAT) & one low silicate content (HOAT) Interesting also that VW started out using silicate with G11, G12 & G12+ had none & then G12++ & G13 returned to low silicate. Ford has also been somewhat undecided in use of silicate, changing back & fourth over the years. Products also do differ slightly depending on European, US or Asian markets.
Jaguar with their recommendations over the years appear to have straddled both European & US requirements.
Please advise "accurate" corrections/amendments etc for the chart if you detect errors.
I make no specific recommendations (other than to use "officially approved coolants" & DO NOT MIX), chart just compiled for perusal & perhaps reference, decisions are up to owners.

John Herbert
1996 XJR