wrongturninwv Posted October 23, 2005 Share Posted October 23, 2005 95 Impreza 1.8 holds 6.2 quarts in cooling system. So if I put in 1 gallon Prestone and the rest water I should be set at about a 70 - 30 mix right ? Link to comment Share on other sites More sharing options...
svxpert Posted October 23, 2005 Share Posted October 23, 2005 <<95 Impreza 1.8 holds 6.2 quarts in cooling system. So if I put in 1 gallon Prestone and the rest water I should be set at about a 70 - 30 mix right ?>> the correct way is a 50/50 mixed solution. Link to comment Share on other sites More sharing options...
frag Posted October 23, 2005 Share Posted October 23, 2005 95 Impreza 1.8 holds 6.2 quarts in cooling system. So if I put in 1 gallon Prestone and the rest water I should be set at about a 70 - 30 mix right ? On my gallon container of Prestone Dexcool, it's written that a mix of 50/50 will keep the mixture from freezing down to -37C° and from boiling up to 129 C°. 70/30 will give you -64 C° and 135 C°. That last proportion seems to be the minimum dilution recommended. 4 quarts is 64 % of 6.2 quarts. I would think that's more than enough. Use demineralized water only. Even for the last flush cause you can't get all the flush water out of the system. Link to comment Share on other sites More sharing options...
Snowman Posted October 23, 2005 Share Posted October 23, 2005 <<95 Impreza 1.8 holds 6.2 quarts in cooling system. So if I put in 1 gallon Prestone and the rest water I should be set at about a 70 - 30 mix right ?>> the correct way is a 50/50 mixed solution. Depends on where you live. 50/50 mix will freeze up in the interior. 75% is about the mixture that I normally run in my cars. Just go buy a cheap hydrometer and check your mixture to make sure it's where you want it. Link to comment Share on other sites More sharing options...
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