anyone here check there OWN TRANNY OIL?

Z11 · 09-10-2012, 03:05 PM

i guess the same goes for the rear differential fluid, it doesnt need service like the tranny oil? so how doesnt it run out of oil?

nabenson · 09-10-2012, 04:28 PM

Just because it says no maintenance doesn't mean it shouldn't be done. The AT should have a fill and drain like the manual (though the location(s) may be different). For normal every day driving don't worry until 30k miles. Then it should be checked and probably drained and refilled. For hard driving, or track driving you should be doing this closer to 15k miles.

The reality is that it's probably a fluid that gets changes when it smells burned and there's not a set service interval. My Volvo is this way. We have full service for 50k miles and the transmission is not found on the list. I end up paying a different shop to swap it after track events when it's hot because the fluid will end up burned up.

TL;DR - Don't worry until you hit 30/60/90k miles. The dealer WILL change it, but you WILL have to ask them to do it since it's not on their regular schedule.

fuct · 09-10-2012, 04:33 PM

Quote:

Originally Posted by Z11

i guess the same goes for the rear differential fluid, it doesnt need service like the tranny oil? so how doesnt it run out of oil?

negative. the rear dif should be changed at about 30k mile intervals. if you abuse or track then do it more often.

11Thumper · 09-11-2012, 02:09 PM

Quote:

Originally Posted by Z11

i guess the same goes for the rear differential fluid, it doesnt need service like the tranny oil? so how doesnt it run out of oil?

No offense...

Didn't you get a manual to read with the car? It's pretty clearly written.

nabenson · 09-11-2012, 04:41 PM

You _could_ use the same oil in the manual transmission and the rear diff, but it's not recommended. They both use a fairly heavy auto gear oil, but in reality you need two different weights. One for the transmission, and one for the rear end. The weights are listed in the owner's manual, and I personally use redline oils in both.

11Thumper · 09-11-2012, 06:26 PM

Quote:

Originally Posted by nabenson

You _could_ use the same oil in the manual transmission and the rear diff, but it's not recommended. They both use a fairly heavy auto gear oil, but in reality you need two different weights. One for the transmission, and one for the rear end. The weights are listed in the owner's manual, and I personally use redline oils in both.

nabenson · 09-12-2012, 10:00 AM

Quote:

Originally Posted by 11Thumper

Sorry, I didn't mean to confuse anyone.

The MT (manual transmission) and the rear diff both use a "heavy" weight automotive gear oil. In a pinch (worst case!) you could use the same oil in both the transmission and the diff. HOWEVER, you should just use the oil weights as specified in the owner's manual.

I'm using Redline MT-85 in the transmission, and Redline 90w in the diff.

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09-10-2012, 03:05 PM	#1 (permalink)
Z11 Banned Join Date: Jan 2012 Location: NYC Posts: 272 Drives: z Rep Power: 0	i guess the same goes for the rear differential fluid, it doesnt need service like the tranny oil? so how doesnt it run out of oil?

09-10-2012, 04:28 PM	#2 (permalink)
nabenson Base Member Join Date: Oct 2010 Location: Dallas, TX Posts: 103 Drives: 10 370z Nismo PW M6 Rep Power: 16	Just because it says no maintenance doesn't mean it shouldn't be done. The AT should have a fill and drain like the manual (though the location(s) may be different). For normal every day driving don't worry until 30k miles. Then it should be checked and probably drained and refilled. For hard driving, or track driving you should be doing this closer to 15k miles. The reality is that it's probably a fluid that gets changes when it smells burned and there's not a set service interval. My Volvo is this way. We have full service for 50k miles and the transmission is not found on the list. I end up paying a different shop to swap it after track events when it's hot because the fluid will end up burned up. TL;DR - Don't worry until you hit 30/60/90k miles. The dealer WILL change it, but you WILL have to ask them to do it since it's not on their regular schedule.

09-11-2012, 04:41 PM	#5 (permalink)
nabenson Base Member Join Date: Oct 2010 Location: Dallas, TX Posts: 103 Drives: 10 370z Nismo PW M6 Rep Power: 16	You _could_ use the same oil in the manual transmission and the rear diff, but it's not recommended. They both use a fairly heavy auto gear oil, but in reality you need two different weights. One for the transmission, and one for the rear end. The weights are listed in the owner's manual, and I personally use redline oils in both.