[s-cars] Ford coolant in an S6

[Jerry Scott]

Vincent
I would stay with one brand of coolant.  I use the new Prestone Extended 
Life (yellow) that can be mixed with any antifreeze.  This way you don't 
have to get every bit of the old out of the engine and radiator to 
change the coolant.  This is new within the last 6 months and is 
supposed to be aluminum safe.  I have had it for about 4 months with no 
problems in my S4.  If you go with the Pentosin coolant you run into the 
very problem that you are faced with now.  You can't find it when you 
need it in an emergency. Have them flush out the old as well as 
possible, then add distilled water to the Prestone for the 50/50 mix of 
the new coolant.  Of course this is only my 2 cent opinion and worth 
just what you paid for it.
Jerry

Vincent Frégeac wrote:

>Hi all,
>
>I'm stuck home with an almost coolant-less S6. A hose have popped out at the
>HVAC coolant temperature sensor when I was driving home.
>
>I've only access to the local part shop. They do not have the red pentosin
>but they have Ford longlife coolant, a phosphate free red stuff too. Their
>mech says he regurlarly use this in VW/Audis with no problem as it's
>basically the same stuff as Pentosin G001200. Any opinion or BTDT or quick
>test I could do to check if it's really compatible?
>
>I was thinking about mixing a bit of the Ford stuff with the quarter liter
>of pentosin I found in an old bottle and heat the stuff to see if it stays
>stable but I'm not sure it's representative of long term behavior of the
>mix.
>
>
>
>Vincent
>
>  
>