green vs yellow

[digitaldrifter91]

well i found some prestone antifreze in my garage and used it in my car. origionally i had the green fluid in my car...

but when i poured this fluid it was yellow...

so as a safe guard i flushed out the old green stuff and put a 50/50 mixture of the yellow anti freeze..

my question is...what is the differnce??

 

[Grey Rider]

I think the yellow is the newer "universal" stuff...

 

[digitaldrifter91]

can they be mixed at all?

 

[digitaldrifter91]

i have a honda accord. they reconmend "their fluid" which is green. or anything equivalent...

 

[Roger]

You may want to check with your vehicle manufacturer. Ford specifically recommends against mixing green with yellow or with dexcool (and vice versus). For Ford, see the following link. I don't know if this is true of other manufacturers however.

http://www.motorcraft.com/standard.asp?T=2&M=7&PageID=26

 

[Roger]

Ford does not recommend it. Not sure about other manufacturers.

For Ford, see: http://www.motorcraft.com/standard.asp?T=2&M=7&PageID=26

 

[Roger]

Ford does not recommend it. They want you to keep each coolant separate. I don't know about others.

 

[Roger]

The answer may depend on your car manufacturer. Ford does not recommend mixing types. I don't know about others.

 

[brad_d]

I'd advise against getting too hung up on color.

Honda coolant happens to be green, but it's not the same as "conventional" green coolants like yellow-bottle Prestone or blue-bottle Peak.

Those green Prestone and Peak formulations use silicates - something that Honda specifically warns against in its owner's manuals (and which the Honda green stuff does not contain).

 

[digitaldrifter91]

yea i was just wondering. cause i dont know what i buy. i mean i go to the store and see a yellow bottle, it either has green or yellow fluid. and i never know which one is which...

now that i have yellow...should i top off with yellow?

what brand is yellow?

 

[RH+G]

Honda just need silicate free antifreeze. Prestone if I recall is silicate free. Just read the bottle. The Peak in the blue bottle which is green isnt. Their orange coolant is thou

 

[edwardh1]

Nissan green and toyota red are silicate free

 

[brad_d]

Peak's Global Extended Life (gold bottle) is silicate free. This stuff is yellow - its color reminds me of urine, actually.

Peak claims that this stuff is like a magic elixir, compatible with anything and fit for use in any vehicle. Maybe, say I. But, I am using it for occasional top-off in my Civic, and am thinking about using it for complete fill after the next flush.