Thermostats
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04-18-2014, 01:29 PM
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04-18-2014, 02:22 PM
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04-18-2014, 02:44 PM
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Your fuel mileage might possibly suffer since the engine might not reach its optimum operating temperature under typical driving conditions, and arguably the lower temps could lead to accelerated wear of the engine's internals.
What is prompting you to consider the lower temp? Below is a link to an article that seems to dispell some of the myths about using a 'stat with a lower-than-recommended opening temperature:
Low Temp Thermostats: What’s the Advantage? | Tuner University
Cheers,
Don
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Mikey (04-18-2014)
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04-18-2014, 03:29 PM
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04-18-2014, 03:48 PM
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04-18-2014, 04:07 PM
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Here's a link to a MotorWeek video that mentions that a thermostat that is running too cool can adversely affect fuel economy. I have experienced this twice with our '93, when fuel economy declined noticeably (2-3 mpg) and the cause was a stuck-open thermostat.
10 Fuel Saving Tips You Can Do Now | MotorWeek
A new, working lower-temp 'stat will have a lesser impact, but over time the cost of lower fuel economy will add up since the ECM will enrich the air-fuel ratio to compensate for the cooler engine operating temps.
Bucky83, ambient temps in Pennsylvania aren't known for being especially hot - what's your reason for considering a lower-temp 'stat?
Don
10 Fuel Saving Tips You Can Do Now | MotorWeek
A new, working lower-temp 'stat will have a lesser impact, but over time the cost of lower fuel economy will add up since the ECM will enrich the air-fuel ratio to compensate for the cooler engine operating temps.
Bucky83, ambient temps in Pennsylvania aren't known for being especially hot - what's your reason for considering a lower-temp 'stat?
Don
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04-18-2014, 04:37 PM
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04-18-2014, 08:29 PM
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#10
04-19-2014, 09:38 PM
She is VERY happy! My son and I removed the throttle body too... Boy, what a mess! Had some minor issues but she's running fine (probably better than she has for years). There was about 1\16 -1\8 of an inch of buildup on one side and approximately 1\16 on the other side of the butterfly. It is spotless now. Tomorrow will be an Easter afternoon claybar/ wax session. :-)
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04-19-2014, 09:42 PM
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She is VERY happy! My son and I removed the throttle body too... Boy, what a mess! Had some minor issues but she's running fine (probably better than she has for years). There was about 1\16 -1\8 of an inch of buildup on one side and approximately 1\16 on the other side of the butterfly. It is spotless now. Tomorrow will be an Easter afternoon claybar/ wax session. :-)
Cheers,
Don
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Bucky83 (04-20-2014)
#12
04-19-2014, 09:57 PM
He did note that I am calmer when I work on the Jag. :-)
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04-19-2014, 10:01 PM
#14
04-20-2014, 12:35 PM
Hi Bucky83,
Your fuel mileage might possibly suffer since the engine might not reach its optimum operating temperature under typical driving conditions, and arguably the lower temps could lead to accelerated wear of the engine's internals.
What is prompting you to consider the lower temp? Below is a link to an article that seems to dispell some of the myths about using a 'stat with a lower-than-recommended opening temperature:
Low Temp Thermostats: What’s the Advantage? | Tuner University
Cheers,
Myth: running engine at lower temp will cause accelerated / premature wear. Its engine oil that keeps the moving parts lubricated (internal mechanical parts of an engine, crank shaft, bearings, piston arms, piston bearing etc)
I frequently read about this cause and effect of operating temperature and what can happen, as an automotive engineer both are right and wrong, first it does not necessarily mean a cooler engine will wear down the engine prematurely (absolutely not true) your engine will suffer premature wear if you do not periodically change engine oil and oil filter. The only thing that can go wrong when you run on cold engine is you will not get a smooth run but as soon as the car idles for a few minutes or after a short period of slow drive (within 30 MPH) the temperature will always reach its optimum. a cooler (a little bit below) working temp is always good, going a bit higher than normal working temp is always bad.
Understanding the specifics and technical properties of the engine parts and functions can eliminate some wrong old school notion. I was in the same position before i went in depth into the subject matter.
Don
Your fuel mileage might possibly suffer since the engine might not reach its optimum operating temperature under typical driving conditions, and arguably the lower temps could lead to accelerated wear of the engine's internals.
What is prompting you to consider the lower temp? Below is a link to an article that seems to dispell some of the myths about using a 'stat with a lower-than-recommended opening temperature:
Low Temp Thermostats: What’s the Advantage? | Tuner University
Cheers,
Myth: running engine at lower temp will cause accelerated / premature wear. Its engine oil that keeps the moving parts lubricated (internal mechanical parts of an engine, crank shaft, bearings, piston arms, piston bearing etc)
I frequently read about this cause and effect of operating temperature and what can happen, as an automotive engineer both are right and wrong, first it does not necessarily mean a cooler engine will wear down the engine prematurely (absolutely not true) your engine will suffer premature wear if you do not periodically change engine oil and oil filter. The only thing that can go wrong when you run on cold engine is you will not get a smooth run but as soon as the car idles for a few minutes or after a short period of slow drive (within 30 MPH) the temperature will always reach its optimum. a cooler (a little bit below) working temp is always good, going a bit higher than normal working temp is always bad.
Understanding the specifics and technical properties of the engine parts and functions can eliminate some wrong old school notion. I was in the same position before i went in depth into the subject matter.
Don
I frequently read about this cause and effect of operating temperature and what can happen, as an automotive engineer both are right and wrong, first it does not necessarily mean a cooler engine will wear down the engine prematurely (absolutely not true) your engine will suffer premature wear if you do not periodically change engine oil and oil filter. The only thing that can go wrong when you run on cold engine is you will not get a smooth run but as soon as the car idles for a few minutes or after a short period of slow drive (within 30 MPH) the temperature will always reach its optimum. a cooler (a little bit below) working temp is always good, going a bit higher than normal working temp is always bad.
Understanding the specifics and technical properties of the engine parts and functions can eliminate some wrong old school notion. I was in the same position before i went in depth into the subject matter.
#15
04-20-2014, 02:18 PM
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