Let me see if I understand this correctly; coolant is sent to the motor by the thermostat, and it sends a certain amount as to keep a certain temperature. If the engine is running cooler, it will just send less coolant to the motor, correct? I'm kind of a newbie when it comes to coolant/radiators, etc., so correct me if i'm wrong. I think that's how it works though.
synthetic motor oil : does lower temp. gage >
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Well, even without too much playing I've altered my temps on my jeeps. They typically ride at the 205F mark. My automatic 4 banger in hot whether with the AC on ..or if idling at low speed in traffic (mechanical fan) will push 210F. No biggie. Perfectly normal. Throw an oil:coolant heat exchanger and it locks it down to 195F
Sure, I've altered the mechanism ..but this was just to point out that just because you have a 195F thermostat ..doesn't mean that you're going to maintain 195F in your engine.
Sure, I've altered the mechanism ..but this was just to point out that just because you have a 195F thermostat ..doesn't mean that you're going to maintain 195F in your engine.
I think (haven't timed it) my car comes up to temp SLOWER with syn in the sump.
Under most operating conditions the normal coolant temperature is controlled by the coolant thermostat. Only under periods of high load where the temperature rises above the point at which the thermostat is open all the time will you see the coolant temperature gauge rise.
If the motor oil is letting the engine operate more efficiently, then the coolant thermostat would reduce the flow to the radiator in order to maintain it's set point.
Now if you were talking about engine OIL temperatures there might be something reasonable to consider, but otherwise this makes no sense.
If the motor oil is letting the engine operate more efficiently, then the coolant thermostat would reduce the flow to the radiator in order to maintain it's set point.
Now if you were talking about engine OIL temperatures there might be something reasonable to consider, but otherwise this makes no sense.
forgot to mention the needle takes a tad longer to reach the new point on the gauge since the switch to syn . Also , think of this , synthetic is better at lowering heat transfer ( friction ) , so then the engine block runs a little cooler , therefore as the coolant passes thru the block ( lowered by the SYN-OIL ) picking up the heat , which is recycled thru the radiator cooling it more and then thru the whole process again and again and ............................. . So , the needle would be a bit lower and take little more time to reach that point . I know what I see . NEW THERMOSTAT , NEW COOLANT , and TEMP. GAGE SENDING UNIT works fine . The next step is to go to a synblend and then regular oil to see if any increase in the needle , which I will notify . UNTIL THEN I'M A BELIEVER THAT SYNS DO LOWER THE TEMP OF THE ENGINE BLOCK . YOU CAN'T ARGUE WITH A SICK MIND
also syns pass thru the engine a bit quicker to help lubricate internal areas ( cylinder walls , etc. ) , so less friction ( heat ) from the start up , thus little longer movement of the needle and less heat from the get go . Many use synthetic for very cold winter starts due to its ability to circulate quicker . So , during warmer weather even faster movement . Seems like common sense to me .
This always cracks me up. Like the tiny amount of heat due to friction in that lubricated system is even CLOSE to the heat of combustion produced. Don't people know what COMBUSTION means in the term "internal COMBUSTION engine"?
Like I said before, if there is less heat, the thermostat will close down restricting flow, (in a properly functioning system as Gary pointed out) LOWERING the heat removal rate resulting in essentially the same temperature as before.
If you don't have a thermostat, the system would behave the way you described it. But you do so it DOESN'T.
Did you just say you replaced the THERMOSTAT and the engine runs at a different temperature? Amazing!
Most interesting indeed!
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This should satisfy everyone here. His system, as configured, in the condition that it is in, rendered a slightly higher then normal reading. The introduction of a better thermmal transfer medium via oil selection, by whatever means, returned his coolant temp to "normal".
Plausible on some obscure level, perhaps??
Plausible on some obscure level, perhaps??
Knew a fellow who switched his parking lot sweeper to AMSOIL, after he found that the AMSOIL aviation oil lowered his head temperature in his plane. That was more than a few years back!
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Quote:
I said the temp. remains the same after the fluid and thermostat change . Try to pay attention in class young man !!!I'm the evil nun of BITOG .
So?
..or am I having an episode
less friction = less heat= cooler running motor, period!
I've seen it on mechanical guages, as well as using temp guns. In case you dont know what a temp gun is, http://www.techinstrument.com/acatalog/I...CFQlQWAodp2Gwtw
Believe what you will,but I've seen it,and so have many others.
I've seen it on mechanical guages, as well as using temp guns. In case you dont know what a temp gun is, http://www.techinstrument.com/acatalog/I...CFQlQWAodp2Gwtw
Believe what you will,but I've seen it,and so have many others.
I think he is having an episode.
Heck I give up. I guess synthetic oil fixes fuel pumps, thermostats, and whatever else people want to believe.
Heck I give up. I guess synthetic oil fixes fuel pumps, thermostats, and whatever else people want to believe.
Perhaps people with air head motorcycles could add their two cents since termostats seem to be getting in the way. I think about oil temps all the time while riding my '73 BMW in the desert heat of New Mexico's summers. My unscientific impression is Amsoil slightly lowers oil temperatures based on idle temperatures at stop lights on hot summer days....one tends to notice such things when riding an air cooled motorcycle where oil and moving air are all that cools the engine. I would say 5-10 degrees lower is about the difference I'm talking about but that's pretty much a non-scietific estimation.
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