New Prestone Yellow 5-year = G05??

[metroplex]

Is the new Prestone "Yellow" 5-year anti-freeze a G-05 anti-freeze (like Ford Gold?)

I am currently using Prestone Green 2-year anti-freeze in all of my vehicles w/ great success (all Fords, 1981, 2000, and 2003).

 

[Matt_S]

No. It's a pure OAT coolant, closer to Dexcool, actually. Don't let that scare you, though. They don't use quite the same chemicals. I'm basically running that in my car. G05 is a hybrid OAT, with a mixture of silicates and phosphates (like the old stuff) and organic acid salts (like the new ones).

 

[metroplex]

Ok thanks for clearing that up. I had done a search on here before and I would end up reading people's research papers on what different anti-freezes are available and I just wanted a Cliff's Notes version!

 

[Ray H]

G-05 is phosphate-free per European automakers' concerns about Europe's generally very hard water causing phosphate precipitation.

 

[Matt_S]

quote:

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Originally posted by Ray H:
G-05 is phosphate-free per European automakers' concerns about Europe's generally very hard water causing phosphate precipitation.

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I stand corrected.

 

[Ray H]

This crap is hard to keep straight...

 

[Greaser]

Gota hand it to Ray...he's "da man" in the coolant department

 

[RF Overlord]

OK, so MY question is:

Can I use the new Prestone in MY car?

2003 Mercury Marauder...came with Motorcraft Premium Gold (G-05) from the factory. Can I use the new Prestone (or other brand) for top-up or for re-fill after changing the thermostat or hoses (for instance), without having to do an entire flush?

 

[ChrisW]

quote:

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Originally posted by RF Overlord:
OK, so MY question is:

Can I use the new Prestone in MY car?

2003 Mercury Marauder...came with Motorcraft Premium Gold (G-05) from the factory. Can I use the new Prestone (or other brand) for top-up or for re-fill after changing the thermostat or hoses (for instance), without having to do an entire flush?

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If your car came with motorcraft gold, best bet is to use either the motorcraft gold stuff, or Zerex G 05. I believe they are about the same price. Zerex G 05 is about $9 a gallon and so is motorcraft gold, at least it is at the dealer near me.

I don't know how compatible the G 05 HOAT coolant is with the Prestone OAT coolant.