Date: Fri, 18 Mar 2005 09:28:16 -0500 From: "The Malt Hound" <c900nospam.apana.org.au> wrote in message news:d1d6g2$dvn$1nospam.apana.org.au... > Mac Townsend <mactnonospamadcomgraphics.com> writes: > >>i just got my new Bentley shop manual for my 93 900S. > >>in it is stated that I ought use ONLY SAAB antifreeze. A non-factory >>SAAB tech site suggests using only Mercedes antifreeze. > >>I an suspecting this is a result of the alloy head/iron block issue >>(and >>of the galvanic issues involved in such)... > >>but doesn't Prestone and the other major brands address this issue >>adequately? > > I'm using an Australian-made coolant from Nulon (at > "http://www.nulon.com.au") which is supplied in concentrate form and > mixed > with the appropriate quantity of water to form cooland-fortified > water > mixture. > > The local supermarkets sell highly-diluted coolant in 5 litre > containers, > but they're all around 25 percent of less of coolant in the mixture. > > Some people seem to believe that the best way to use coolant > additives is > mix them 1:1 with water - has anyone tried that with Saab 8V or 16V > engines > in 900's? Ummm. That's what I've *always* done. A 50/50 mix of antifreeze and water is what is generally prescribed for best freeze protection and maximum anti-corrosion. -Fred W