Water Wetter & Dex Cool

robertf

Well-known member
Jan 22, 2006
4,795
364
-
Water wetter is for race cars on tracks that ban glycol coolants and have to run just water. Dont put that crap in a driver
 

best4x4

Well-known member
Mar 1, 2015
595
72
Beaumont, TX
Water Wetter does work with anti-freeze (says so on the bottle), but it's just snake oil IMHO. Switch to the green coolant, and an 180F thermostat.
 

mearstrae

Well-known member
Mar 15, 2017
143
18
Pennsylvania
Yes, the Dexcool [OAT] Yellow is crap and causes problems. Green coolant is better. But why not use the Red [HOAT] coolant? It's formulated to be friendlier to aluminum parts, and has a seven year change cycle. Just throwing a little shit in the game...
 

jim-00-4.6

Well-known member
Sep 30, 2005
2,037
6
61
Genesee, CO USA
I have a vehicle that specifies ethylene glycol, 2 that specify OAT, and 1 that specifies HOAT.
Well, the owners' manuals make those specifications.

But you know what?
Based on the statements of people I don't know, I think I'll ignore what the manufacturer of the vehicle says, and do what Joe Random Internet Poster says.
 

roverover

Well-known member
Feb 27, 2005
3,819
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Lancaster PA
www.UsedLandRoverParts.com
I have a vehicle that specifies ethylene glycol, 2 that specify OAT, and 1 that specifies HOAT.
Well, the owners' manuals make those specifications.

But you know what?
Based on the statements of people I don't know, I think I'll ignore what the manufacturer of the vehicle says, and do what Joe Random Internet Poster says.

I assume you are running 5w30 Castrol then too

At some point you will see an engine running Dexcool apart i guarantee you you will change it that day
 

jim-00-4.6

Well-known member
Sep 30, 2005
2,037
6
61
Genesee, CO USA
I assume you are running 5w30 Castrol then too

At some point you will see an engine running Dexcool apart i guarantee you you will change it that day
I don't think 5w30 Castrol is specified in any of my manuals, but I'd have to look to sure.

I'm assuming the company that employs the people who designed the vehicle have more information available to them about that vehicle, and what may make that vehicle function correctly.

Probably the bigger issue with this thread is how the posters refer to coolant's color, as if that had anything to do with anything.
Really?
Green is better than orange?
My coolant has polka-dots. It's better than EVERYONE'S.
 

Howski

Well-known member
Oct 19, 2009
1,499
213
Alabama
I'm assuming the company that employs the people who designed the vehicle have more information available to them about that vehicle, and what may make that vehicle function correctly.

And LR made the correct choice when they put non-greasable U joints in the D2 didn?t they? I think LR has proven they had many mistakes in the 90’s and 00’s. The factory doesn’t always know best
 

mearstrae

Well-known member
Mar 15, 2017
143
18
Pennsylvania
Yes, we talk about the color to differentiate between coolants, but then it is only a dye added to differentiate between coolants. Oh, and I've worked at a plant (owned by my brother-in-law's family) that supplies anti freeze to the major auto manufactures and markets (and airlines, their wing de-icer is pink by the way). So, I've also worked in the quality control lab to check mixtures. And OAT (yellow) was formulated to meet environmental mandates to be less hazardous.
 

roverover

Well-known member
Feb 27, 2005
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Lancaster PA
www.UsedLandRoverParts.com
jim-00-4.6;1075541 I'm assuming the company that employs the people who designed the vehicle have more information available to them about that vehicle said:
Besides the information being 18 years old that may be close to sensible but ask the BMW soccer moms that change their oil every 12k how that worked out

Companies change there specs on a regular basis I know the oil for the newer ranges have changed at least twice in the last year but nobody send a memo to the owner to update their manual

You are welcome to do what you want and the info supplied in any forum needs to be qualified certainly but don't use 18 year old factory owners manual specs to do that
 

best4x4

Well-known member
Mar 1, 2015
595
72
Beaumont, TX
LR used "green" coolant in the RRC/D90/D1. It was the Bosch 99-02 P38/99-04 D2 that started with the OAT/HOAT crap. It is not better than the green stuff, it supposedly lasted longer, but no one mentioned how it clots when exposed to air (look at any P38/D2 throttle body heater plate that leaks running OAT/HOAT/Dexcool.

It's your LR and you can follow the 18 year old manual to a tee. I'd also strictly only run the OEM 195F thermostat, and keep the OEM drive shaft.....
 
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jim-00-4.6

Well-known member
Sep 30, 2005
2,037
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61
Genesee, CO USA
LR used "green" coolant in the RRC/D90/D1. It was the Bosch 99-02 P38/99-04 D2 that started with the HOAT crap. It is not better than the gree stuff, it supposedly lasted longer, but no one mentioned how it clots when exposed to air (look at any P38/D2 throttle body heater plate that leaks running HOAT/Dexcool.

It's your LR and you can follow the 18 year old manual to a tee. I'd also strictly only run the OEM 195F thermostat, and keep the OEM drive shaft.....
the 99-02 P38 was OAT, not HOAT.
Please, scold me because you have more accurate information.
 

Tugela

Well-known member
May 21, 2007
4,764
564
Seattle
It's his Rover, he can run Franzia in his cooling system if he wants to. You're clearly not going to change Jim's mind on the subject, so it's moot at this point.