Recommend a Transmission and Diff Oil

sylenze · 06-05-2009, 11:54 AM

I am planning on replacing my transmission and diff fluids...i was wondering if people have any recommendation on which oil/brands/types to use... after reading through posts through out the forum... i was thinking of using royal purple syncromax for the transmission and royal purple max gear for the diff... please let me know what you think...

wstar · 06-05-2009, 12:56 PM

I'm considering the RP stuff for my diff as well, haven't gotten around to it yet though.

Slow*Jim · 06-05-2009, 05:57 PM

I used Redline for both in my 350z and it worked wonders. Huge improvement over stock for shifter feel

AK370Z · 06-06-2009, 01:44 AM

I'm running Redline engine oil and I may just stick with redline for tranny and diff oil too.. but keep in mind, the maintenance guide recommends the first change around 30,000 miles or 24 months (but if you want to change it earlier, it's up to you.)

sylenze · 06-06-2009, 04:07 PM

just change my transmission and diff fluids to RP... the transmission fluids were fine but the diff fluids is just black... i dont know why this is but i am happy that i decided to switch it out... maybe because of overheating... fyi... miles on the car is 5260mi... no track...i dont know if it matters, but i often drive from los angeles area to santa barbara with out breaks (about 130 mi)...

Dee@Amplified · 06-13-2009, 03:03 AM

I wouldnt recommend Royal Purple. I'd go with AMS Oil, Motul, Redline. Just don't get anything to high performance on the the fluid, if you get racing fluid from any of those companies your transmission will shift very hard when the fluid is cold but amazing when its hot. If you daily your car get a mid level fluid.

semtex · 06-13-2009, 06:29 PM

I went with Redline. MT-90 for the trans. 75W90 for the Diff.

Dee@Amplified · 06-14-2009, 03:47 PM

MT-90 is Great stuff, how do you like it in the car? any hard shifting when its cold?

semtex · 06-14-2009, 05:19 PM

Quote:

Originally Posted by AMPLIFIED

MT-90 is Great stuff, how do you like it in the car? any hard shifting when its cold?

Not that I've noticed. Seems to run smoothly across all temps.

zylont · 06-14-2009, 09:33 PM

Is there a DIY for changing the transmission fluid? ...I didn't see one

Zeto · 07-26-2009, 08:13 PM

Quote:

Originally Posted by semtex

I went with Redline. MT-90 for the trans. 75W90 for the Diff.

How was the difference compared to the stock transmission fluid?

semtex · 07-29-2009, 03:40 PM

Quote:

Originally Posted by Zeto

How was the difference compared to the stock transmission fluid?

Imagine wearing a pair of silk boxers, but some idiot comes and dumps crushed walnuts down your drawers. It feels kinda like that. Feels nice and smooth -- sorta.

Sharif@Forged · 07-29-2009, 04:02 PM

We've always used Motul Gear 300 75-90 on our Nissan gearboxes. Brilliant stuff. For a street use differential, we run the same thing, and if you intend to do track work, Gear 300 75-140.

Zeto · 07-29-2009, 04:09 PM

Quote:

Originally Posted by semtex

Imagine wearing a pair of silk boxers, but some idiot comes and dumps crushed walnuts down your drawers. It feels kinda like that. Feels nice and smooth -- sorta.

I'm buying some Redline tommorrow. What's the fluid capacity for the transmission?

GMZ · 07-29-2009, 04:11 PM

On my 350 I used RP Max Gear 75-90 in both. The tranny was super notchy when cold but when it was warm it was like butter. Ill probably give RL a shot this time.

06-05-2009, 11:54 AM	#1 (permalink)
sylenze Base Member Join Date: Mar 2009 Location: So Cal/SB county Posts: 222 Drives: 370z 6mt+SP PG Rep Power: 16	Recommend a Transmission and Diff Oil I am planning on replacing my transmission and diff fluids...i was wondering if people have any recommendation on which oil/brands/types to use... after reading through posts through out the forum... i was thinking of using royal purple syncromax for the transmission and royal purple max gear for the diff... please let me know what you think...

06-05-2009, 12:56 PM	#2 (permalink)
wstar A True Z Fanatic Join Date: Mar 2009 Location: Houston, TX Posts: 4,024 Drives: too slow Rep Power: 3594	I'm considering the RP stuff for my diff as well, haven't gotten around to it yet though. __________________ 7AT Track Car! Journal thread / Car setup details

06-05-2009, 05:57 PM	#3 (permalink)
Slow*Jim Base Member Join Date: May 2009 Location: Columbus, Ohio Posts: 29 Drives: 2010 Mazdaspeed 3 Rep Power: 16	I used Redline for both in my 350z and it worked wonders. Huge improvement over stock for shifter feel __________________ "Racing is life... everything before and after is just waiting." -Steve McQueen

06-06-2009, 01:44 AM	#4 (permalink)
AK370Z Administrator Join Date: Sep 2008 Location: NJ Posts: 9,930 Drives: 09 370Z MB Sports M6 Rep Power: 10	I'm running Redline engine oil and I may just stick with redline for tranny and diff oil too.. but keep in mind, the maintenance guide recommends the first change around 30,000 miles or 24 months (but if you want to change it earlier, it's up to you.) __________________ The370Z Signature Pictures ll Want to rock our forum decals on your car? Then click here! ll How to Embed YouTube Videos In a Post STOP! (Hammertime) ll Become a Premium Member Click HERE ll F.A.Q. Are You a Nissan Dealer? Click Here to Become A "Supporting Dealer" and Start Listing Your 370Zs In Our Inventory Section My Monterey Blue Z ll My Exhaust --> My Intake --> G3 Nissan's Official Response Regarding Oil Temp Issue: CLICK HERE Need a Set of Cheap Winter wheels /Tires? Then Visit The Banner Link Below and Place Your Order. You'll Help Keep The370Z Alive.

06-13-2009, 06:29 PM	#7 (permalink)
semtex A True Z Fanatic Join Date: Jan 2009 Location: Behind enemy lines Age: 54 Posts: 5,995 Drives: People to drink Rep Power: 32	I went with Redline. MT-90 for the trans. 75W90 for the Diff. __________________ "There are no small accidents on this circuit." -- Ayrton Senna 316.8whp & 248 ft/lbs (Dyno Dynamics) \| 319whp & 256 ft/lbs (DynoJet) (04/23/10) Stillen G3 CAI, CBE, Pulley / F.I. LTH / GTSpec Ladder Brace / Setrab Oil Cooler / UpRev-tuned by Forged Perf.

06-06-2009, 04:07 PM	#5 (permalink)
sylenze Base Member Join Date: Mar 2009 Location: So Cal/SB county Posts: 222 Drives: 370z 6mt+SP PG Rep Power: 16	just change my transmission and diff fluids to RP... the transmission fluids were fine but the diff fluids is just black... i dont know why this is but i am happy that i decided to switch it out... maybe because of overheating... fyi... miles on the car is 5260mi... no track...i dont know if it matters, but i often drive from los angeles area to santa barbara with out breaks (about 130 mi)...

06-13-2009, 03:03 AM	#6 (permalink)
Dee@Amplified Banned Join Date: Feb 2009 Location: CA Posts: 118 Drives: MB Base 6MT w/Sport Rep Power: 0	I wouldnt recommend Royal Purple. I'd go with AMS Oil, Motul, Redline. Just don't get anything to high performance on the the fluid, if you get racing fluid from any of those companies your transmission will shift very hard when the fluid is cold but amazing when its hot. If you daily your car get a mid level fluid.

06-14-2009, 03:47 PM	#8 (permalink)
Dee@Amplified Banned Join Date: Feb 2009 Location: CA Posts: 118 Drives: MB Base 6MT w/Sport Rep Power: 0	MT-90 is Great stuff, how do you like it in the car? any hard shifting when its cold?

06-14-2009, 09:33 PM	#10 (permalink)
zylont Base Member Join Date: Mar 2009 Location: Tampa Posts: 77 Drives: 09' PG 370Z Rep Power: 16	Is there a DIY for changing the transmission fluid? ...I didn't see one

07-29-2009, 04:02 PM	#13 (permalink)
Sharif@Forged The370Z.com Sponsor Join Date: Dec 2008 Location: Marietta, GA Posts: 840 Drives: 2009 GT-R, 2010 370Z Rep Power: 18	We've always used Motul Gear 300 75-90 on our Nissan gearboxes. Brilliant stuff. For a street use differential, we run the same thing, and if you intend to do track work, Gear 300 75-140. __________________ Sharif@Forgedperformance.com General Manager/Certified Tuner/NASA-PCA-BMWCAA Instructor JRZ RS1's Available NOW...PM me Cobb ProTuner, Uprev ECU Flash, FCON Vpro, Haltech, Motec Certified

07-29-2009, 04:11 PM	#15 (permalink)
GMZ Enthusiast Member Join Date: Jun 2009 Location: Virginia Beach Posts: 304 Drives: 07 V8 4Runner 4x4 Rep Power: 16	On my 350 I used RP Max Gear 75-90 in both. The tranny was super notchy when cold but when it was warm it was like butter. Ill probably give RL a shot this time. __________________ Z-less once again

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