Doh! Re: too cool temps in the winter

Feelstranger feelstranger at
Wed Feb 22 09:43:36 EST 2006

Err. right,  Spent more time typing that question, than thinking it 
Right, got to keep that open, closed thing straight...


----- Original Message ----- 
From: "Peter Schulz" <pcschulz at>
To: "Feelstranger" <feelstranger at>; <200q20v at>
Sent: Tuesday, February 21, 2006 5:12 PM
Subject: Re: too cool temps in the winter

> Nat:
> Cool running means that the engine isnt heating the coolant.
> IE the thermostat is stuck OPEN not closed ( if it stuck closed, engine 
> would overheat)....
> Blocking the radiator means that you will not be able to further cool the 
> coolant that the engine is not being given the opportunity to heat (stock 
> thermostat is supposed to stay closed until the coolant in the block gets 
> to 87 C), therefore what little heat is being transferred to the coolant 
> from the engine can now be retained until it gets to the heater core, 
> where a blower pushes air over the core and removes heat from the 
> coolant...
> Make sense?
> -Peter
> At 09:24 AM 2/21/2006, Feelstranger wrote:
>>I just replaced my thermostat due to cool running temps, and terrible gas
>>mileage.  Unfortunately, the gas mileage does not seem to have responded,
>>like the running temp has.
>>However, If the T-stat is functioning,  doesn't it regulate temp by 
>>coolant flow to the radiator?  So, how exactly  would blocking air flow to
>>the radiator help?
> -Peter Schulz
> Chelmsford Ma, USA
> 1991 200 20v Q Avant Titan Grey
> 1991 200 20v Q Avant Indigo Mica
> 1991 90 20v Q Red
> 1990 CQ silver (awaiting S2 engine transplant)
> 1990 CQ red ( to part or not)

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