oil temp past 200f?
07-25-2011 | 01:15 PM
#16
AutoX
Joined: Mar 2009
Posts: 13
Likes: 0
From: Chapel Hill, NC
Was running over 270 on track in 2009 C4S PDK. Installed 3rd radiator kit last week and saw car running about 10-15 deg cooler in hotter ambient temps. It was 95+ at VIR last week. Hottest I saw oil temp was about 255-260.
07-25-2011 | 01:45 PM
#17
Race Director
Joined: Nov 2009
Posts: 10,594
Likes: 6
From: THE Republic
Keep in mind that the coolant temperature gauge is not ever correct. It's designed to sit at about 180ºF all the time, unless it gets really hot--and then it will jump way up. Thus, it's not a good method to judge the accuracy of your engine oil temperature gauge. The oil gauge is much more precise and reports actual temperatures. After much driving in hotter ambient temperatures you should easily see 225-245ºF. Perhaps you simply weren't driving the car long enough in hot temps to catch your eye in the past.
07-25-2011 | 05:39 PM
#18
Racer
Joined: Nov 2010
Posts: 328
Likes: 0
From: Houston, Texas, USA
I agree that the oil temperature is a better indicator for how warm your engine has got, we're always talking about don't drive it hard until the oil temp has reached 200 F. Coolant gauges are useful though as it's the coolant that can have the most problems and the gauge can give you a good idea as to what the cause is. Problems such as incorrect antifreeze mixtures, broken water pumps, leaking pipes and radiators, frozen coolant, sticking thermostat, bursts etc
I wish a software option was available to switch the Porsche coolant gauge from being an idiot gauge to one that actually shows you the real coolant temperature. Some cars now like the new Mazda 3 don't even have this gauge and just have a blue light for cold. Consumer psychology showed that owners are more likely to drive gently if there's a light on as opposed to a gauge showing cold.
I wish a software option was available to switch the Porsche coolant gauge from being an idiot gauge to one that actually shows you the real coolant temperature. Some cars now like the new Mazda 3 don't even have this gauge and just have a blue light for cold. Consumer psychology showed that owners are more likely to drive gently if there's a light on as opposed to a gauge showing cold.
07-25-2011 | 06:06 PM
#19
Three Wheelin'
Joined: Jul 2007
Posts: 1,648
Likes: 92
From: NJ
I agree that the oil temperature is a better indicator for how warm your engine has got, we're always talking about don't drive it hard until the oil temp has reached 200 F. Coolant gauges are useful though as it's the coolant that can have the most problems and the gauge can give you a good idea as to what the cause is. Problems such as incorrect antifreeze mixtures, broken water pumps, leaking pipes and radiators, frozen coolant, sticking thermostat, bursts etc
I wish a software option was available to switch the Porsche coolant gauge from being an idiot gauge to one that actually shows you the real coolant temperature. Some cars now like the new Mazda 3 don't even have this gauge and just have a blue light for cold. Consumer psychology showed that owners are more likely to drive gently if there's a light on as opposed to a gauge showing cold.
I wish a software option was available to switch the Porsche coolant gauge from being an idiot gauge to one that actually shows you the real coolant temperature. Some cars now like the new Mazda 3 don't even have this gauge and just have a blue light for cold. Consumer psychology showed that owners are more likely to drive gently if there's a light on as opposed to a gauge showing cold.
By the way, my "sporty" 2008 BMW 535 with 6MT has no oil temp gauge, no coolant temp gauge and no oil pressure gauge...only a stupid mpg gauge. Based on my experience with other cars the oil generally gets up to operating temp in about 10 minutes of easy driving.
07-25-2011 | 08:39 PM
#21
Race Director
Joined: Jun 2001
Posts: 12,125
Likes: 276
From: North Bay Area, CA
You'll get your wish soon, at least on a new car. In addition to the normal coolant/oil temp/oil pressure, etc gauges the '11 Cayenne has a multifunction instrument that displays a number of different screens, one of which is configurable with specific data of your choice. This is how mine is set up. From the pics I've seen of the 991 interior this instrument will be included.
07-25-2011 | 09:30 PM
#23
Rennlist Member
Joined: Mar 2006
Posts: 6,570
Likes: 81
From: Austin
