Site News - 1/3 Member of the Year: DougM
Date: Sun, 10 Dec 2006 15:24:08 GMT
From: ShazWozza <>
Subject: Re: 82 Degree Thermostat in Winter? wrote: > The 9000 I bought a couple of months ago has a 82 degree thermostat in > it. I'm in Vermont, where we'll probably have some sub-zero F days this > winter. So far I've driven in 5 degrees F with everything seeming > pretty normal, although the temp needle rides about a quarter-inch from > the blue bottom when highway cruising. Is there a mechanical reason I > need to switch to a higher temperature thermostat for the winter? Why should a coolant temperature of 82C be OK for the engine in summer but not in winter? After warm up, an 82C thermostat should maintain that temperature regardless of the outside ambient temperature unless it is faulty. It is easily checked. Remove the thermostat and verify it is closed when cold. Heat it in a saucepan of water on your stove and with a cooking thermometer check that it opens at its rated temperature.

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