Which Anti-Freeze in Td5 Defender

[ciapek]

Thinking of heading up into the back of Mt Bulla this long weekend, and I was concerned about which anti Freeze I should put into the cooling system.
Upon closer inspection, the current fluid in the reservoir is clear, and I did not have my head under the lid since the last service, is it fair to assume that all I have is straight water, or do the TD5 motors NOT have the traditional Green Ethelyne Glycol solution.....
Thx in advance....

[disconut]

Important Info

Use only ethylene glycol based anti-freeze (containing no methanol) with only Organic
Acid Technology (OAT) corrosion inhibitors to protect the cooling system.
IMPORTANT: No other anti-freeze should be used with anti-freeze containing OAT corrosion inhibitors. Coolant solution must not fall below 50% anti-freeze otherwise damage to engine is liable to occur. Maximum concentration is 60%.

PERCENTAGE CONCENTRATION - 50% PROTECTION - LOWER TEMPERATURE LIMIT
Complete protection
Vehicle may be driven away immediately from cold, -33C).
Safe limit protection
Coolant in semi-frozen state. Engine may be started and driven away after warm-up period, -41C).
Lower protection
Prevents frost damage to cylinder head, block and radiator. Thaw out before starting engine, -47C).
CAUTION: Anti-freeze content must never be allowed to fall below 50% otherwise damage to the engine is liable to occur. Also, anti-freeze content should not exceed 60% as this will greatly reduce the cooling effect of the coolant.


Trev.

[feral]

Check your service manual.
In my Discovery Td5 it states that you MUST use the OAT coolant. This is the red coolant that is sometimes hard to find..not everyone stocks it. I use the Nulon Long life but still change the fluid at half the recommended by LR.

Cheers,
Lyndon.

[disconut]

I think thats what the RAVE disc is saying?

Cooling system - Td5 13.00 litres of coolant is required.

Trev.

[ciapek]

Thank you for the speedly replies, I knew that they cut corners on the service, my fluid is definitely NOT green or red/pink for that matter.....
Ever since Stewart Webster(Frankston) changed owners many people that Used to service their vehicles there have not gone back.......Bastards, and it was so close and convenient too..........

Thanks for the tip, so it's flush and refill.........

[rick130]

the factory fill is Texaco(Caltex) Extended Life OAT coolant. It's a fluro orange in it's concentrate form. Available from a Land Rover dealer or a Caltex servo.
If you get it from Caltex, make sure the bottle says 'Extended Life Coolant' and 'lasts 5 years'. It will also have something about 'Carboxylate Protection' on the container. This refers to the carboxylate organic acid used as the inhibitor.

I use it in my Tdi and SWMBO's Patrol.

[ciapek]

cheers all, all info taken aboard, shopping on Thursday....

[Greenman]

Hi guys. I recently had a new radiator fitted and was advised by my mechanic (an LR specialist in Frankston) to use Valvoline GO5 concentrate (green in colour). Mine had the pink coolant before but in his experience it can become quite corrosive and also prone to developing a positive charge. Upon checking the coolant before the radiator replacement it was indeed found to have a charge 3X higher than the recommended level.

[Tusker]

Never had my cap off..

Does this red stuff have the slimey feel that the green stuff does?

[rick130]

if you have stray current in the cooling system, it's not the coolants fault, I'd be carefully checking earths.

Having said that, GO5 is a HOAT (hybrid organic acid technology) and is a very, very good inhibitor system, from what I've read. GO5 adherents claim that it provides superior cavitation erosion protection and is less 'reactive' in some problem cooling systems than OAT based coolants, and there is supposedly a class action suit developing in the US over it's use against GM (the GM version is called Dexcool) but a Caterpillar oil test lab bloke in the US told me that the Texaco (Caltex) Extended Life OAT coolant is the same basic stuff as supplied to Caterpillar except for a couple of Cat proprietory supplemental coolant additives.

[ciapek]

Hi guys. I recently had a new radiator fitted and was advised by my mechanic (an LR specialist in Frankston) to use Valvoline GO5 concentrate (green in colour). Mine had the pink coolant before but in his experience it can become quite corrosive and also prone to developing a positive charge. Upon checking the coolant before the radiator replacement it was indeed found to have a charge 3X higher than the recommended level.

Greenman, thanks for the tip, where in Franga did you get it done, I'll drop in and see them.......

[Greenman]

Greenman, thanks for the tip, where in Franga did you get it done, I'll drop in and see them.......

Ciapek, it was at LRH Automotive, at the Overton Rd end of New St. A v.honest and reputable man. Mention my name ((Daryl), it wont get you a discount though;)

[Greenman]

if you have stray current in the cooling system, it's not the coolants fault, I'd be carefully checking earths.

Any one in particular?