Reading AT Temps?
#16
06-24-2019, 07:32 PM
Join Date: May 2017
Location: Washington State
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Coupe 6MT Premium RAS
#17
06-24-2019, 07:52 PM
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I actually "tested" the whole fluid expansion thing and with (2) different vehicles and (2) different times of changing the fluid, it's a non-factor. I drained it hot and put it in a 5-liter bottle (with markings) and used a sharpie marker to mark the level and I waited. The fluid was 140º+ F when I started and I waited, checked the fluid temp, waited longer, checked the fluid temp, and when it finally got down to around 75-80º F, I said screw it, I'm done.... The level, for all practical purposes, did not change.
Besides, replacing it with what drained is only the starting point since our models have a dipstick. The dipstick is the final say on the level amount
Besides, replacing it with what drained is only the starting point since our models have a dipstick. The dipstick is the final say on the level amount
#18
06-24-2019, 07:55 PM
Registered User
Just trying to determine if hot I can get accurate read on the dipstick. Then I would let vehicle cool overnight in the garage with new bottles nearby. At that point fluid temps should be basically the same without the thermal expansion and then can do a drain, measure and refill.
#19
06-24-2019, 08:42 PM
Join Date: May 2017
Location: Washington State
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On most vehicles that hold 10 quarts of fluid like the G35 the volume difference between cold and operating temp is about 3/4 of a quart which is pretty significant when it comes to checking fluid level. With the 4 quarts that comes out during a drain/fill that would be roughly 1/4 of a quart, over the years that can add up to a substantial difference in fluid which would explain why that other user was getting 5 quarts out during his drain/fill.
Thus why it's necessary to always perform an actual fluid level check sometime after doing a drain/fill.
Thus why it's necessary to always perform an actual fluid level check sometime after doing a drain/fill.
#20
06-24-2019, 09:55 PM
#21
06-25-2019, 01:52 PM
Registered User
I have Nissan Data Scan tool (paid version too) and even it doesn't access these sensors and it seems to know Nissan's systems pretty in-depth. I seem to recall that these data is only available in the TCM, which NDIS doesn't talk to. Some systems, it seems, relay data from their TCMs to the ECU where it is accessible, but Nissan does not.
#22
06-25-2019, 03:33 PM
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#23
06-26-2019, 03:08 PM
I'm likely going to be installing a temp sensor and cooler soon as it bugs me not knowing how the trans is doing when I'm towing the bike. Unfortunately don't know much about these specialty fittings, so I have much to learn.
You are very detailed just for a drain and fill
. I'll likely have to put a "T" in the line and a temp sensor on the return side. Not sure where to mount a gauge, I think the A-Pillar gauges look tacky.
You are very detailed just for a drain and fill
. I'll likely have to put a "T" in the line and a temp sensor on the return side. Not sure where to mount a gauge, I think the A-Pillar gauges look tacky.
The following users liked this post:
LCC0256 (07-08-2019)
#24
06-27-2019, 07:18 PM
On an unrelated note.... still need to install a 3rd party oil pressure sensor as well
https://g35driver.com/forums/v36-diy...-pressure.html
https://g35driver.com/forums/v36-diy...-pressure.html
#25
08-31-2019, 10:42 AM
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#26
09-01-2019, 06:44 PM
#27
09-01-2019, 11:09 PM
Registered User
Hmmmm, it appears it is available after all ! https://apps.apple.com/us/app/obd-fu...ign-mpt=uo%3D4. It won't work with the ODBII adapter I have though.... As I mentioned above:
Generic ELM327 Bluetooth adapters are not compatible with OBD Fusion for iOS. This is a limitiation of iOS, not OBD Fusion.
#28
09-02-2019, 12:32 AM
Registered User
#29
09-02-2019, 06:58 AM
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149° is dumb (09-02-2019)
#30
09-02-2019, 11:40 AM
Maybe recent update finds it? I have both OBD Fusion and Link with their native OBD adapter and using fine with IPhone and it failed to find any PIDs when AT ECU is scanned. Use it all the time with my GX 460 and CX-5
149: What year G do you have? What OBD dongle you are using with Fusion?
149: What year G do you have? What OBD dongle you are using with Fusion?