Dirsregard the typo damn iPhone AC...
Does anyone know if this coolant is ok for my 2011 Jaguar XK... The site says yes, my refractometer says it's good.. Just want that extra reassurance. It's a yellow...

 

Does it say OAT on the reverse?

Richard

 

If you're going with O'Reilly brand, this is what you need (OAT)

https://www.oreillyauto.com/detail/c...afz0/ordex5050

 

yes sir Richard.. it says that it's compatible in the list of vehicles.. I'm just weary of universal anything... It was tested alongside AMSOIL which is excellent coolant, it's a little cloudy but it's as close as they can get to AMISOL..

 

Hey Sean!!!.. It says it doesn't fit my car type?.. I know that chemistry looks similar to the Motorcraft Ford DEX coolant and it's orange... There is no Jaguar vehicle type in the compatibility list?... But as far as Universal it is OAT based, no silicates, and contains ethylene glycol...

 

I wonder about why use the "PREDILUTED", which means you're paying nearly double. A half gallon of coolant and a half gallon of water.

 

Yes I never buy the 50/50 in case I want better freeze protection so the ratio would change to 60/40-70/30... plus you get more for the same price 2 4 1

I just called O'Riley's "GENIUS" bar.. You can imagine that **** show..

 

Hey @Matusco , the first one you posted isn't dex-cool (OAT), but the one I posted and you have in post #5 is. Yes OAT contains ethylene glycol. You're good to go with it.

 

I don't know about the USA but many homes in the UK have very hard water which is best not added to your cooling system.

I have medium hard water where I live but I have an good supply of distilled water which I always use for flushing and diluting. You can, of course, buy deionised water in the auto store for a couple of $ per quart so even that would probably be cheaper than buying pre-diluted.

Richard

 

In the US of L, distilled water is about a buck a gallon. So, fifty cents for a half-gallon. That's a heck of a lot cheaper than paying for prediluted anything.
I guess the prediluted stuff has a market though; for people who either don't know better, people who don't care, and people who have too much money.

 

Yes it's just plain ole Dex-Cool.
.
.
.

 

Some members here have switched to non-dex-cool universal coolants with success. Personally I see no benefit in doing so. I do get mine premixed for about $10 per gallon as the undiluted options nearly double the price anyway.

But if you do use anything other than dex-cool, it’s essential you thoroughly flush the entire circuit. Mixing/contaminating coolant types can lead to sludge formation.

 

I don't use either OAT nor HOAT. It's easier that way.

 

there is also POAT.. but ive heard about the DEX being what causes Geling up...

 

Sean, thank you 🙏 as you're always very helpful along with Richard as well. After the flush I'm just going with this 2 liters concentrate after mixing with Distilled I will have 4 liters. Which will be plenty.. for future top offs.. I can always order on Amazon as Advsnce Closed in my area and was going to O'Riley's but now ive decided to just stick to one source.

 

oh!!! What a minute.. So the one I had posted being the universal is ok?...

So I've been told from the beginning months ago prior to my WP failing that OAT was what I needed not DEX... SOB!!!!
Richard just told me OAT is ok????? This is messed up!!!.. Ethynel Gycol is not good for our engines!!.. And I have been mislead!!!..
I think I ruined my Coolant system running OAT!!!




what about if I just say F- - k all the coolant companies and buy this ?

 

I can see why no-one wants to buy the Jaguar stuff!

Don't get too fixated on colour or the glycol base. OAT (aka Longlife) antifreeze is the one you need and is usually ethylene glycol based but it could be propylene glycol based, just as IAT antifreeze (the older formulation which needs to be changed every 3 years or so) can be ethylene glycol based.

Both OAT and IAT come in all colours. The original supplied in the x150 is a pink version of OAT which seems to the most common in the UK, but I also have green, blue, yellow and colourless OAT on my shelves as my various cars and bikes use all variations.

If you currently have pink in your car (it sometimes looks red or orange in the bottle), then I would stick with pink as mixing colours always ends up a muddy brown, although it works perfectly well. As long as you use an OAT antifreeze, which could be ethylene glycol or propylene glycol based, ethylene glycol being better for heat transfer but a lot more toxic, you'll be fine. The two glycol types are mixable but most people would not want to mix OAT and IAT although this is usually only an issue with cars from the previous millennium.

Richard

 

I used it to keep my engine safe during a coolant leak and I mean driven on it for a WHILE...atleast for about a month or 2 and it didn't do any harm.It works just as good as OEM or probably better,but I've never driven on it enough mileage for it to expire to truly find out.

 

Ive also being told to run the DEX in my 2011 XK... But I've read that the DEX has had reports of turning to gel, and reeking havoc on the coolant system....

 

Dex-Cool is not widely used in the UK but, provided it is OAT, it can be mixed with any other OAT coolant.

This "turning to gel" is what some people say happens when OAT coolant is mixed with IAT coolant. In my experience, having worked on cars for the last 55 years which embraces the period when all coolants were alcohol, then IAT and then OAT, I have lived through the transition periods when we were regularly mixing IAT and OAT coolants and I can report that nothing bad ever happened to a single vehicle that I worked on.

However, that's really not that relevant for cars like the X150 as they were supplied from the factory with OAT coolant and I cannot imagine when anyone would ever use an IAT coolant in such a car.

Richard