180 drilled stat in colder climates - GM Forum - Buick, Cadillac, Olds, GMC & Pontiac chat

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180 drilled stat in colder climates

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Old 04-16-2007, 06:19 PM
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Default 180 drilled stat in colder climates

180 drilled stat in colder climates

A very techie friend of mine questioned my intent to install a "drilled" 180 stat because of potentially poorer gas mileage due to the colder climate of Winnipeg Manitoba Canada. Temps here can range from -40 F to +90 F, notably long winters where daily high temps can stay below freezing from mid-Oct to to mid-March and can easily stay under -25 F for months. Also keeping in mind that June through August summers are typically quite hot and dry, typically 80 to 90 F.

I personally don't care if it takes a minute longer to warm up in the winter.

Should I be concerned and have to replace my stat twice per year?
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Old 04-16-2007, 06:26 PM
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I got a 180 and i live in northern wisconsin and have no problem with, a get roughly 25mpgs in mixed driving
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Old 04-16-2007, 06:28 PM
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you could run the 180 in the summer and 195 in the winter if you wanted too
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Old 04-16-2007, 06:29 PM
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i run a 180 year round in southern minnesota
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Old 04-16-2007, 07:41 PM
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in really cold climates i would not recommend running a drilled thermostat, but instead an unmodified 180* would work best
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Old 04-16-2007, 08:03 PM
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assuming that the drilled hole is for the sole purpose of avoiding an air pocket / overheat issues (please correct me if I am wrong) are there any steps or considerations that should go with using an unmodified stat? Thanks to all those who have chimed in.

Unless the concensus sways I'll just start with a nondrillled one - as is.

I'm hoping to install the 180 this weekend so any tips on what to look for would be great. If there'* a link to a step-by-step instruction page that would be fantastic!

Cheers!
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Old 04-17-2007, 01:14 AM
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Drilled 180 year round in WI/IL. I'm doing just fine. I like to have the holes to ensure any trapped air can escape after I refill the coolant.
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Old 04-17-2007, 01:23 AM
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Originally Posted by dillcc
Drilled 180 year round in WI/IL. I'm doing just fine. I like to have the holes to ensure any trapped air can escape after I refill the coolant.
You are a brave man! I put my drilled 180 back in like 3 weeks ago when we started to have warmer weather (80 degrees). After I put it back it the day time temps have droped to 40 and I've been to lazy to put in something that will give me more heat on my 6am drive into work.

Ed
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