<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body><div><div style="font-family: Calibri,sans-serif; font-size: 11pt;">Absolutely correct Roger.<br>Sage advice.<br>Michael S</div></div><div dir="ltr"><hr><span style="font-family: Calibri,sans-serif; font-size: 11pt; font-weight: bold;">From: </span><span style="font-family: Calibri,sans-serif; font-size: 11pt;"><a href="mailto:roggrace@telus.net">Roger Grace</a></span><br><span style="font-family: Calibri,sans-serif; font-size: 11pt; font-weight: bold;">Sent: </span><span style="font-family: Calibri,sans-serif; font-size: 11pt;">5/11/2015 11:19 p.m.</span><br><span style="font-family: Calibri,sans-serif; font-size: 11pt; font-weight: bold;">To: </span><span style="font-family: Calibri,sans-serif; font-size: 11pt;"><a href="mailto:healeys@autox.team.net">healeys@autox.team.net</a>; <a href="mailto:coudesluijs@chello.nl">Oudesluys</a></span><br><span style="font-family: Calibri,sans-serif; font-size: 11pt; font-weight: bold;">Subject: </span><span style="font-family: Calibri,sans-serif; font-size: 11pt;">Re: [Healeys] Coolant change</span><br><br></div>Agree the normal interval for changing glycol coolant is 2-3 years.<br><br>In my opinion it is best to use the least amount of glycol/anti freeze that <br>you can get away with. This of course depends on where you live and if you <br>intend to leave your car out to the elements at 25 C below ! Reducing the <br>amount of antifreeze improves hear transfer (specific heat) but reduces <br>corrosion protection. So I use about a 15 % glycol mix for basic freeze <br>protection when the ol' lady is parked in the garage and add an anti <br>corrosion additive - such as No-Rosion that has a minimum of 5 year life <br>before needing to be changed. Best to use RO water with a new fill.<br><br>Note too that if you use the waterless coolants your engine WILL run hotter <br>unless you increase the coolant flow rate (difficult for AH) due to the <br>reduced heat transfer capability. Typically they have a specific heat of <br>0.66 (water =1) that is 2x worse than a 50:50 glycol mix. This will not be <br>obvious as the temp gauge will not show it, as it measures the coolant temp <br>and not the temp of the engine metal bits that will be hotter. Main <br>advantage is that you never have to change coolant.<br><br>rg<br><br><br>-----Original Message----- <br>From: Oudesluys<br>Sent: Thursday, November 5, 2015 2:07 PM<br>To: healeys@autox.team.net<br>Subject: Re: [Healeys] Coolant change<br><br>Op 5-11-2015 om 18:51 schreef Bob Spidell:<br>> it just occurred to me that the only thing that needs lubricating in a <br>> water pump is the bearings, but the last thing you want in the bearings is <br>> water. Am I missing something?<br><br>What about the seal that needs lubrication.<br>Kees Oudesluijs<br>_______________________________________________<br>Support Team.Net http://www.team.net/donate.html<br>Suggested annual donation $12.75<br>Archive: http://www.team.net/archive<br>Forums: http://www.team.net/forums<br><br>Healeys@autox.team.net<br>http://autox.team.net/mailman/listinfo/healeys<br><br>Unsubscribe/Manage: <br>http://autox.team.net/mailman/options/healeys/roggrace@telus.net<br><br><br><br>-----<br>No virus found in this message.<br>Checked by AVG - www.avg.com<br>Version: 2015.0.6173 / Virus Database: 4457/10952 - Release Date: 11/05/15 <br><br>_______________________________________________<br>Support Team.Net http://www.team.net/donate.html<br>Suggested annual donation $12.75<br>Archive: http://www.team.net/archive<br>Forums: http://www.team.net/forums<br><br>Healeys@autox.team.net<br>http://autox.team.net/mailman/listinfo/healeys<br><br>Unsubscribe/Manage: http://autox.team.net/mailman/options/healeys/michaelsalter@gmail.com<br><br></body></html>