Everyone with oil temp issues

jbbrann · 04-23-2009, 08:39 PM

Quote:

Originally Posted by SoCal 370Z

You need to tell that to my wife as she is one who driving it alone on the trip. I can tell you from experience that when my wife is done with a car she leaves the keys for me (versus leaving them in her purse) at that point she never drives it again; she just states they we need to purchase another one.

Well, you could let her drive the car and when she is done you could convince her that you're sure she would like the GT-R better.

Robert_Nash · 04-23-2009, 08:46 PM

There seems to be some implication, at least, that this alleged problem is more prevalent in manual trans cars but I can't think of any logical reason why that would be.

Does anybody have any idea why a manual transmission car would be more likely to have an oil temp issue than an auto trans car?

travisjb · 04-23-2009, 10:34 PM

Quote:

Originally Posted by Robert_Nash

There seems to be some implication, at least, that this alleged problem is more prevalent in manual trans cars but I can't think of any logical reason why that would be.

Does anybody have any idea why a manual transmission car would be more likely to have an oil temp issue than an auto trans car?

Here's what I posted today over in Wstar's journal...

Quote:

Originally Posted by travisjb

There's prob some truth to your point that fewer AT folks are inclined to track their cars... and I agree the transmission itself isn't likely... and I also think this car runs hot regardless of transmission... but I think with the manual folks are spending more time at higher RPMs, which is a contributing factor... oil heats up with friction and I suspect friction increases non-linearly with RPMs... automatic transmissions should reduce time at higher RPMs vs manual b/c when it upshifts it does so with 99% precision... and I think realistically, most of us guys with manual transmissions are keeping on the gas at least a little between upshifts... and so for example even if we shift at 7,400 rpm, the car is running up to 7,800 rpm when the clutch is pressed... I suspect a lot of heat is building up between 7,500 and 8,000 rpm for the 6mts... Drivers can help by lifting the gas sooner, but I don't blame it all on us drivers, I think the engagement points in the clutch are too high in the pedal stroke... Based on my own experience and from watching videos of guys driving this car, I'm convinced it is happening a lot... until I find some AT guys overheating, I'm going to keep asking the question... sorry for the long-winded explanation!

Honestly, I have no data to back this theory up... other than an observation that folks on this board with 6MT seem to be the only ones overheating to the point of limp mode (so far!)...

WStar made the reasonable point that it should be rev limited even with the clutch in... my car's in the shop so I can't test that, but I seem to remember that mine shot above 7,500 w/ clutch in... anyone willing to check?

wstar · 04-23-2009, 11:38 PM

Quote:

Originally Posted by travisjb

WStar made the reasonable point that it should be rev limited even with the clutch in... my car's in the shop so I can't test that, but I seem to remember that mine shot above 7,500 w/ clutch in... anyone willing to check?

Will have to be a 6MT person I think. On 7AT, I've never actually tried putting my car in neutral on the freeway and revving, but sitting at a stop it rev limits at like 5K in neutral, you can't go higher unless you're in gear and moving.

Robert_Nash · 04-24-2009, 09:47 AM

Quote:

Originally Posted by travisjb

Here's what I posted today over in Wstar's journal...

Honestly, I have no data to back this theory up... other than an observation that folks on this board with 6MT seem to be the only ones overheating to the point of limp mode (so far!)...

WStar made the reasonable point that it should be rev limited even with the clutch in... my car's in the shop so I can't test that, but I seem to remember that mine shot above 7,500 w/ clutch in... anyone willing to check?

That does make some sense but when I'm doing something like running the Dragon, I'm in manual mode and "shifting" just about as much as anyone with a 6MT would be so it still would seem like a bit of a mystery.

SoCal 370Z · 04-24-2009, 02:35 PM

Quote:

Originally Posted by Robert_Nash

Obviously, you need a new wife (or none at all)

Quote:

Originally Posted by jbbrann

Well, you could let her drive the car and when she is done you could convince her that you're sure she would like the GT-R better.

There is a long story behind this acquisition (AK knows it) but I have the best of wives, and believe me if this issue becomes a problem—this car is gone. Life is too short to jockey around with stopgap fixes when there are sooooo many other choices available.

Robert_Nash · 04-24-2009, 04:19 PM

Quote:

Originally Posted by SoCal 370Z

There is a long story behind this acquisition (AK knows it) but I have the best of wives, and believe me if this issue becomes a problem—this car is gone. Life is too short to jockey around with stopgap fixes when there are sooooo many other choices available.

There are always lot's of choices but I've had problems with cars with price points far above what the Z costs - different vehicles from different manufcturers and/or that cost tens of thousands more are no guarantee of perfection; either long or short-term.

The Porsche Boxster engine problems (requiring brand new engine after relatively low miles) comes to mind for one example; a current edition of which starts at around $47K for the base or $57K for the "S". I consider Porsche to be one of the best manufacturers in the world but even they "aint perfect".

SoCal 370Z · 04-24-2009, 05:28 PM

Quote:

Originally Posted by Robert_Nash

There are always lot's of choices but I've had problems with cars with price points far above what the Z costs - different vehicles from different manufacturers and/or that cost tens of thousands more are no guarantee of perfection; either long or short-term.

I understand where you are coming from. We are simply at the stage in life where time is more important to us. This morning we had a serious discussion about the car, and the fact that she does not trust it where she was going to be driving it and the distance from home—it now has one strike against it. I guarantee if she were to take it and it defaults to the limp-home mode from overheating (and I know the stretch where it is most likely to happen) then she will never drive it again. Summer is coming and the last thing I want to do is listen to a Service Advisor/Manager feeding me crap if there is a factory issue. I will simply encourage everyone that encounters it to file a complaint with the NHTSA to push the issue into a government mandated recall, and sell our Z.

04-23-2009, 08:46 PM	#2 (permalink)
Robert_Nash Track Member Join Date: Jan 2009 Location: Middle TN/Savannah GA Posts: 762 Drives: '14 Q60IPL/'14Armada Rep Power: 18	There seems to be some implication, at least, that this alleged problem is more prevalent in manual trans cars but I can't think of any logical reason why that would be. Does anybody have any idea why a manual transmission car would be more likely to have an oil temp issue than an auto trans car? __________________ Robert -My Basset Hound Is Smarter Than Your Honor Student and Barack Obama -

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