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CPWerks
04-22-2005, 12:52 PM
I was just wondering something. My car's temperature goes up to 218 fehrneheit everynow and then. I was just wondering if this is normal temp. I get it ussually when i drive on regular city streets for about 30 minutes or so. Oh yeah, the car is a 95 Cadillac Seville SLS

Verdegrrl
04-22-2005, 01:16 PM
I take it you flush the system every couple of years and keep it in good condition? Has it always doen this? How long have you had the car?<p>Most cars can run 190 to 210 no problem, and are actually designed to run as hot as possible without overheating, as this is most efficient from an economy and power standpoint.<p>If your car is designed to run in the 175 to 185 range, then I'd look to a slight blockage (perhaps partially collapsed radiator hose - it can collapse on the inside and look normal outside), coolant sensor (controls the rad fan) not working correctly, radiator fan not working, thermstat not opening all of the way, etc.<p>Find out what range your car is supposed to run at.

Cozz
04-22-2005, 05:11 PM
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>Verdegrrl</b> &raquo;</i></TD></TR><TR><TD CLASS="quote"><br>Most cars can run 190 to 210 no problem, <b>and are actually designed to run as hot as possible without overheating</b>, as this is most efficient from an economy and power standpoint.<br></TD></TR></TABLE><p> <IMG NAME="icon" SRC="http://www.germancarfans.com/images/forums/cwm13.gif" BORDER="0"> <IMG NAME="icon" SRC="http://www.germancarfans.com/images/forums/cwm13.gif" BORDER="0"> <IMG NAME="icon" SRC="http://www.germancarfans.com/images/forums/cwm13.gif" BORDER="0"> <p>A motor that's 20-30deg off it's maximum will actually perform better emissions.

CPWerks
04-23-2005, 09:35 PM
Well, the car has 72K miles...<br>Everything works perfect, AC, annd all...<br>Oil changed on time, everything and anything...<p>Btw, i am getting 15MPG which is just normal IMO....<p>My only concern is that sometimes the car Won't start as normal.....I 'll have to say 1 out of every 7 times this happens....

Verdegrrl
04-24-2005, 08:14 PM
CP, try using Water Wetter (get it at Pep Boys) to see if that helps drop your temps a bit. Also look for a leak in the cooling system, since if it can't maintain pressure (it runs under pressure when warm, as a way to allow higher temps before coolant boils), it cool itslef nearly so well. <p><A HREF="http://www.arrowheadradiator.com/overheating_causes_and_cures.htm" TARGET="_blank">http://www.arrowheadradiator.c...s.htm</A><p>COZZ, I'm sure you'll agree that an engine becomes most powerful/efficient when the heat differential between burned gases and outside ambient air is the greatest. Since most cars run around 200 degrees and the accepted max with ideal water/coolant mix is around 260 degrees, you're right. The remainder should be viewed as a safety margin. <p> <A HREF="http://www.worldenergy.org/wec-geis/news_events/member_news/NZConf/10a.asp" TARGET="_blank">http://www.worldenergy.org/wec...a.asp</A>

CPWerks
04-24-2005, 10:33 PM
Hmm, Willtake precaution's.. Thanks guys, you tried your best