[viperlocc]

Originally Posted by 93hatch 200 isnt high dude its normal, and my car runs cool cuz of a 3 core aluminum radiator and taurus fan, buy my fans on low and i have underdrive pulleys so if i ever wire the dam thing right to run on high it should run perfect in our 100+ degree summers

200* is getting hot. oil begins to burn at 212*. 170 to 180* is normal operating temp. if your thermo is a 180* it'll open fully at 180* and will hover right around their. an engine that is cooled too much will not perform as well, oil will be thicker. 155* to 185* is prime.

[The Novice]

Originally Posted by viperlocc 200* is getting hot. oil begins to burn at 212*. 170 to 180* is normal operating temp. if your thermo is a 180* it'll open fully at 180* and will hover right around their. an engine that is cooled too much will not perform as well, oil will be thicker. 155* to 185* is prime.

I dont see my car ever running at 155, i wish heh, but there is just no way.

[viperlocc]

Originally Posted by The Novice I dont see my car ever running at 155, i wish heh, but there is just no way.

ive gotten mine down to 165* but that is with a controlled fan setting at 145*. get a colder thermo and it will run that temp.

[Chris951]

My gauge must not work. According to it, my car never gets even 1/4 of the way up the gauge. Don't know what temperature that is

[nolife]

Originally Posted by viperlocc 200* is getting hot. oil begins to burn at 212*. 170 to 180* is normal operating temp. if your thermo is a 180* it'll open fully at 180* and will hover right around their. an engine that is cooled too much will not perform as well, oil will be thicker. 155* to 185* is prime.

HUH? Motor oil does not start burning anywhere near 212F, it typically has a flash point in the 400-500F range as a minimum. For the thermostat rating, that is the temperature that it starts opening, not when it is fully open. 200 water temperature is not really "HOT" at all considering most cars (5.0 Mustangs included) have a 195 thermostat and are designed to run with peak efficiency at that temperature.

[viperlocc]

Originally Posted by nolife HUH? Motor oil does not start burning anywhere near 212F, it typically has a flash point in the 400-500F range as a minimum. For the thermostat rating, that is the temperature that it starts opening, not when it is fully open. 200 water temperature is not really "HOT" at all considering most cars (5.0 Mustangs included) have a 195 thermostat and are designed to run with peak efficiency at that temperature.

everywhere i look on google says 212*. flash point and burn is completely different. flash point is with flame...burning isnt.

http://wiki.answers.com/Q/At_what_temperature_does_oil_burn

i know that is just one place but ive also talked with other people and they have also said its a low 200* temp for oil. They make other types of coolant that can withstand over 200* temps and not evap, so my question is, then why have thermo's that are 180*?

to me it makes perfect sense that if oil burns at 212*, have the coolant cool at 180* or less. 212* is hot...stick your hand in boiling water once and tell me its not hot..

[93hatch]

i dont think turbos are only ran at 212 degrees, all that oil cooling them must be bad in 5 min

[nolife]

Well oil does not burn at 212. The flash point is the point that the fumes given off can combust and the flash point is also considered the point where oil starts to break down. Maybe I'm confused by your reference comparison of burning and flame, do you mean maybe there is a chemical change in the oil at 212 because that does not happen at that low temperature either. The point the oil will actually burn is even higher than the flash point (autoignition point). Either way, temperatures in the cylinders and other points in the engine where oil flows is FAR hotter than the 150-210F coolant anyway. Maybe the people you asked misunderstood your question.

Flash point - Wikipedia, the free encyclopedia

They make other types of coolant that can withstand over 200* temps and not evap, so my question is, then why have thermo's that are 180*?

???, are you talking about regualr ole antifreeze? It raises the boiling point to above 240 I beleive when used with a 16lb radiator cap. This has nothing to do with the oil temperatire though.
They make thermostats at different temperatures because that is what that specific engine was designed for.

The more I read this thread, the more confused I am by your questions.

[viperlocc]

well i might have been a little off with the oil but it still doesnt beat the fact that temps over 200* are still bad for an engine. always thought something different with oil but guess ya learn new things everyday