Is Red Antifreeze Suitable For An Alloy Block?

[dino20vt 3]

As above basically, some red antifreezes' say unsuitable for classic cars, should I just stick with blue?

[Daviewonder 533 3 Cars]

Most antifreeze manufacturers list red for the 205 now days. It used to be green and before that it was blue.

[oilman 7]

The colour of antifreeze doesn't mean a lot, mainly it's there so you can see if it's diluted or not.

[feb 47]

There are two types, ethylenglycol based (usually green or blue) and organic ones (usually orange/red).

The organic ones last longer.

I guess the answer to your question is yes as organic ones are often being used in Subaru engines which are alloy.

I prefer an ethylenglycol based one and changing it sooner.

Edited October 16, 2011 by feb

[MrP 1]

There are two types, ethylenglycol based (usually green or blue) and organic ones (usually orange/red).

The organic ones last longer.

I guess the answer to your question is yes as organic ones are often being used in Subaru engines which are alloy.

I prefer an ethylenglycol based one and changing it sooner.

 

 

 

Thats not correct, my antifreeze contains ethylene glycol and is an Organic acid formula (OAT)

 

read this - http://forum.205gtidrivers.com/index.php?showtopic=127836