Re: Re: 180 thermo (hurts mileage)

From: Bernd D. Ratsch (bernd@texas.net)
Date: Thu May 13 1999 - 11:46:22 EDT


I also own a 1969 AMC Javelin that consistently gets 18mpg (average). And
it's running a 180 T'Stat as well. (Used to be 190)

At 10:33 AM 05/13/1999 +0000, you wrote:
>>
>> Actualy... from real life experience... although lowering the thermostat
>will
>> yes indeed give you better performance, it will hurt gas mileage...
>>
>> I went from a ~200 to a 180 in my T-Bird, and lost about 2 mpg...
>>
>> On the book side- Thermodynamics also says that the lower the operating
>> temperature, the lower the efficiency...
>>
>
>You can't do a general statement like this because ferd and Dodge
>engines are different. I replaced mine and still get 18.5 combined
>mpg. I'll get 19 mpg on the highway (yes 19!) if I keep the Dak at
>65 mph. AND! me with a 3.92SG rearend! Life can be more than fair
>sometimes....hahahahahah....By the way thats my old 97 V6 mileage!
>
>GS -
>
>98 5.2L 5spd
>3.92SG Running Synthetic everywhere



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