The antifreeze/coolant thread

[Genie47]

OK some info for all those utterly confused.

 

OAT = Organic acid technology

HOAT = Hybrid organic acid technology

 

BASF makes many antifreezes for cars. Many types. Here are they:

 

G-05 - Used in MB, BMW, Ford family including older Mazda and Volvo. HOAT based

G-12 - Used in VW cars. OAT based.

G-30 - Used in new VW cars. OAT based. Chemically the same as G-12 only different color.

G-33 - Used in Citroen and Peugeot. OAT based. High reserve alkalinity!

G-34 - Used in GM Europe (Opel) and SAAB. OAT based.

G-70 - Formulated for Toyota. (Dunno where to get but sure looks good!)

 

http://www.performancechemicals.basf.com/e...olants/products

 

Toyota Red Long Life Coolant is loaded with phosphates and has no silicates.

Honda Type 2 is also loaded with phosphates and has no silicates.

Daihatsu will most likely use Toyota.

Chevrolet will most likely be the same as G-34.

New Mazdas (M2, M3, M5, M6) use silicate free system.

Nissan also loaded with phosphates and no silicates.

Mitsubishi most likely follow the rest of the Japanese, high phosphate no silicates.

 

OK VW, SAAB and many "exotics" most likely have very expensive stock coolant with VW or SAAB name in it. So what to substitute with?

 

Any OAT with no silicates in it. I would suggest either Prestone 5/150 or Caltex Long Life Coolant. These are easily available no silicates antifreeze with no VW or SAAB name or something.

 

Whatever it is, DO NOT INTRODUCE SILICATES IN A SILICATE FREE COOLANT SYSTEM.

 

OK what about Ford and all those that use G-05? You can get away with MB or BMW coolant. Now why they have some silicate, some phosphate, some amine, some nitrite? These chemicals offer speedy and fast passivation of metal surfaces should some micro crack happens. Viola! protect from corrosion. Pure OAT ones take very long time to protect.

 

So can you use the OAT types like Prestone 5/150 or Caltex LLC in those requiring G-05? Yes, no problem. The reason why G-05 is used is because hard water cause problems with the pure OAT type coolants. Seems like deionized water is damn hard to find in Europe or something. But still G-05 is excellent as a product and if I'm not wrong, cheaper than the Prestone or Caltex OAT coolant.

 

Are the three Japanese big makers Honda, Toyota and Nissan all the same? Chances are yes, they all want no silicate, high phosphate so you can quite use them interchangeably. Don't have Toyota, use Honda. Don't have Honda, use Toyota.

Edited April 17, 2006 by Genie47

[Furrynadz]

can use other g-xx rating?

[Genie47]

Most likely yes if the current one is the OAT type. That is no silicate, no phosphate, no whatever. So G-12 can interchange with G-30, G-33, G-34 and all those.

 

G-05 cannot use on all those that require OAT.

 

Oh yes, forgot, if your car very old like COE car, pre-1996 car and was using the old green stuff. Can use G-05. Confirm very good for it.

[Elantrahatch]

urgh, that's a lot of techie stuff to take for someone who don't even know if pouring distilled water into the engine coolant reservoir is the correct move. *did that yesterday cos saw coolant level ma chim nothing*

 

What's recommended for a hyundai matrix? That green color coolant that comes in like a 7-UP can?

[Genie47]

Hyundai apes Mitsubishi which is Japanese. Go with the OAT type. Either Prestone 5/150 or Caltex ELC.

[Odyssey02]

Citroen Berlingo use what ar? normal coolant found in mobil can anot?

[Genie47]

Berlingo will be the OAT w/o silicates or phosphates. Nope, cannot use the Mobil one. Either the Caltex ELC or Prestone 5/150.

[Odyssey02]

ok. thanks.

[Genie47]

Well, you can use the Toyota LLC one if you want. It got loads of phosphates and the issue with these Euro systems is that they cannot stand silicate. Toyota LLC got no silicate and phosphates is more of a water issue. If you can use distilled or deionized water, most likely Toyota LLC is good for it.

[Furrynadz]

if use the bmw or the vag ones? can?

[Genie47]

BMW one got silicates. So cannot use in silicate free system. VAG one don't have silicate, can use in silicate free system.

 

As long as your system don't like silicate, don't use any coolant with silicate.

[Seanboi]

Genie, do u have ani idea if they sell Toyota LLC in quarts or in liter?

 

Went to a few stockist and they told me that only have in 3.815L packing.

[Genie47]

It's in L. Premixed is at 4L.

[Clubace]

A bit confused.

 

Nissan cars can use prestone and caltex LLC eh? Since its all phosphates and no silicate.

[Mika140]

Aveo can use the toyota one?

[Genie47]

Aveo can use Toyota or any that do not have silicates.

[Genie47]

Nissan can use Prestone and Caltex LLC is because there is no silicates. Newer cars as long as there is no silicates, can use.

[Subutai]

How bout Kia car (Rio 1.5)?