Oil temp 2006 997S
Rennlist Member
Joined: Jul 2009
Posts: 6,087
Likes: 51
From: MA
Did a quick search but didn't really find an answer. I've got the third radiator installed and oil temp consistently sits at 210 in winter regular driving. In summer DC traffic it creeps up to 220.
My Indy says don't worry about it. Seems high but I know that outside of getting to a "normal operating temp".... Higher long term temp isn't always good.
Any opinions? As far as I know I have a stock thermostat....
My Indy says don't worry about it. Seems high but I know that outside of getting to a "normal operating temp".... Higher long term temp isn't always good.
Any opinions? As far as I know I have a stock thermostat....
Nordschleife Master
Joined: Jun 2013
Posts: 5,622
Likes: 790
From: richmond hill
i've noticed the same thing as you guys
997.1 - in HOT weather crappy traffic, i've seen my oil temp go as high as 225.... but when cruising 60-80 mph the car cools back to 200.
while i don't expect much diff, i'm curious if these numbers will change at all after doing the oem 997.2 end conversion, supposedly there should be even more airflow to the rads during normal highway driving with large center deflector/radiator shrouds
997.1 - in HOT weather crappy traffic, i've seen my oil temp go as high as 225.... but when cruising 60-80 mph the car cools back to 200.
while i don't expect much diff, i'm curious if these numbers will change at all after doing the oem 997.2 end conversion, supposedly there should be even more airflow to the rads during normal highway driving with large center deflector/radiator shrouds
Last edited by myw; Jul 23, 2014 at 12:55 AM.
Pro
Joined: Feb 2011
Posts: 588
Likes: 27
From: Calgary, AB
Interesting read here:
http://www.machinerylubrication.com/...lubricant-life
Cliff notes:
"In 1903, Arrhenius won a Nobel Prize when he figured out the relationship between temperature and most chemical reaction rates. Often called the Arrhenius Rate Rule, it relates to the fact that lubricants, once they've exceeded their base activation temperature, will degrade (oxidize) twice as fast for every 10 degrees C (18 degrees F) increase in temperature. In fact, there are a range of problems associated with too much heat, such as:
• Additive and base oil decomposition is accelerated.
• Some additives will volatilize and escape into the atmosphere.
• Viscosity-index improvers shear down more rapidly.
• Microbial contaminants prefer warmer temperatures (but not scalding).
• Heat collapses oil films, causing accelerated abrasion and scuffing conditions.
• Hot oil shortens the life of filters and seals and accelerates corrosion.
• Both oil and grease are more prone to leakage.
• Grease separates faster (oil from thickener) at elevated temperatures.
• High surface temperatures can form carbonaceous gum and resins."
http://www.machinerylubrication.com/...lubricant-life
Cliff notes:
"In 1903, Arrhenius won a Nobel Prize when he figured out the relationship between temperature and most chemical reaction rates. Often called the Arrhenius Rate Rule, it relates to the fact that lubricants, once they've exceeded their base activation temperature, will degrade (oxidize) twice as fast for every 10 degrees C (18 degrees F) increase in temperature. In fact, there are a range of problems associated with too much heat, such as:
• Additive and base oil decomposition is accelerated.
• Some additives will volatilize and escape into the atmosphere.
• Viscosity-index improvers shear down more rapidly.
• Microbial contaminants prefer warmer temperatures (but not scalding).
• Heat collapses oil films, causing accelerated abrasion and scuffing conditions.
• Hot oil shortens the life of filters and seals and accelerates corrosion.
• Both oil and grease are more prone to leakage.
• Grease separates faster (oil from thickener) at elevated temperatures.
• High surface temperatures can form carbonaceous gum and resins."
Racer
Joined: May 2012
Posts: 347
Likes: 83
If concerned at all about oil temps in normal driving situations, change your thermostat if you haven't already done so. I'm not referring to the low temp versions, because I don't believe in their true benefits in understanding thermal management, but I have personally seen numerous times that a weak/sticking thermostat can cause temps to creep up over time on all 9*6 and 9*7 cars.
Most don't change, or think to have a shop change, the thermostat when even replacing the infamous waterpump. Worth the small investment if it means a 10-20 degree difference in average oil temp over the life of your car, especially on track.
Most don't change, or think to have a shop change, the thermostat when even replacing the infamous waterpump. Worth the small investment if it means a 10-20 degree difference in average oil temp over the life of your car, especially on track.
