black944 turbo

I just bought some prestone ready mix, can not find anything on that leads me to believe it contains phosphates. It also states that it is designed for aluminum engines and blocks. Is there any reason, why I should not use this?
Thanks

UncleMaz

No.

apierce918

same thing i use

WizPorsche944

yeah it should be fine just as a needed add, but I wouldnt use it for a flush and fill.

V2Rocket

I use the orange Prestone.

SD Porsche Fan

Me too.

black944 turbo

Ok, so I am assuming that it is ok to use then. Thanks

V2Rocket

Suddenly all our cars explode...

Mike B

I gotta be different. I go with the blue stuff available from the VW dealership.

Keithr726

I used that in my old car but it was too hard to see in the expansion tank. That blue type sounds good.

sillbeer

I use Honda brand coolant in my prelude. It's blue as well. I wonder if they are the same?

Calmchaos

Blue stuff here too... Pentosin.
Probably the most poisonous stuff I've ever touched LOL.

Lizard944

Zerex G-05 Pretty gold color, and "unofficially" approved by Porsche. The old 450? 5/150,000 had full endorsement, but I think the holdup on this product is the minor amount of silicates?
Label says for use in Porsche before MY 1996. Good enough for me! Readily available locally for $11.00/gal