EastYorkStang 63 Report post Posted November 29, 2018 Have to store my SporstsRoof outside this winter. Normally I run straight water with a quart of Water Wetter. Checked it today it's not going be ok for winter. Got to thinking instead of draining and refilling with antifreeze what if I just drain it completely of all existing liquid ? Leave it sealed but empty. Quote Share this post Link to post Share on other sites
larryc94 38 Report post Posted November 29, 2018 No matter how well you drain it, rad and block drains there will be water still in there. Just drain and add the appropriate coolant. In the spring when you get it going and you have a problem, cracked block, pushed out core plugs, heater core you will wish you added the anti-freeze Quote Share this post Link to post Share on other sites
Alan_Mac 48 Report post Posted November 29, 2018 Drain, fill with coolant, run it up to running temperature. Test the coolant to make sure its well below the lowest temperature you will see outside. Quote Share this post Link to post Share on other sites
EastYorkStang 63 Report post Posted December 1, 2018 Thanks for the insight. That’s what I did. Two jugs of coolant later I’m good to -37c. Which is what it should be mid January. Quote Share this post Link to post Share on other sites
Red Sportsroof 10 Report post Posted December 2, 2018 You should always run some anti freeze in your engine. Anti freeze has rust inhibitors and buffers in the mix helping the cooling system. Straight water will allow rust to develop, in the summer if you're having a problem with running hot weaken the mix. Fifty percent anti freeze will reduce the cooling efficiency by about 15%. Quote Share this post Link to post Share on other sites
EastYorkStang 63 Report post Posted December 3, 2018 Water wetter does the same thing. Quote Share this post Link to post Share on other sites
