Thread: Which Coolant do you use

what happened to a couple teaspoons of soluble oil in a bucket of water?
Oat is grain when ground can make flour, and when steamed and rolled then cooked with water an a lil salt becomes porrige

Gday All,
My car went into a L/R specialist 3 yrs ago and they flushed the cooling system and changed the coolant to tectaloy 90+ (green)..so I have been using that since, I am now being told by other L/R specialists that that's the wrong coolant and will corrode the alloy head.
Without arguing who's right or wrong in the specialist department, whats people thoughts , expieriences, should I change it again for tectaloy red.
I have a 2001 td5..

Thanks and Cheers Ean

Originally Posted by Ean Austral

Gday All,
My car went into a L/R specialist 3 yrs ago and they flushed the cooling system and changed the coolant to tectaloy 90+ (green)..so I have been using that since, I am now being told by other L/R specialists that that's the wrong coolant and will corrode the alloy head.
Without arguing who's right or wrong in the specialist department, whats people thoughts , expieriences, should I change it again for tectaloy red.
I have a 2001 td5..

Thanks and Cheers Ean

Why would the head corrode ?
It use's a conventional inhibitor package that's been used for years in aluminium engines.

Tectaloy make excellent coolants. AFAIK they are the only locally based coolant blender that has their own lab and test facilities, the only downside with their 90+ over an OAT is that the life is three years/40,000km and the heat transfer isn't as good an OAT/HOAT as it uses a conventional additive package (which is designed for all alloy engines)

If you've exceeded 40,000km I'd be dumping and flushing.
When flushing use an alkali based flush initially (helps get rid of any silicates present) and then use an acid based flush if swapping to an OAT or HOAT (just prepares the metal surfaces for the new inhibitor better, this was the advise I got straight from Tectaloy )
Tectaloy's Mukowt (alkali) and HD2 (acid based) are excellent flushes and what I use.

From the Tectaloy Techinfo catalogue and Green Book

Tectaloy
90 Plus - 3yrs or 40,000kms
Tectaloy 90 Plus is a pre-mixed, 33% Anti
Freeze Anti Boil, ready to use conventional style
radiator coolant.
Formulated for heavy-duty use, it is designed to
meet increased demands placed on passenger
vehicles today. Ideally suited to modern multi valve
engines working under increased loads.

{edit} Forgot to add that the correct cross for Land Rover OAT or a number of HD diesel engines with a Tectaloy coolant is their V Plus Orange, NOT the XP7 Red

I recantly replaced the rad, thermostat ,hoses, etc and flushed the system then filled it with new coolant,so its only 2 mths old.

I may have miss quoted alittle on the head corroding out but it was something to that effect,

I know the coolant we use in our Cummins engines on the boat isnt the Cummins stuff, but it equivilant or better depending on who you talk to..

Thanks for the reply,

Cheers Ean