Shifting gears feels rough

Chuck33079 · 09-29-2014, 09:19 AM

No, but it's your car. I'm out. You've gotten plenty of good advice and you're going in a different direction out of laziness or cheapness. Z1 is in Georgia and carries Redline. Good luck.

Bad Boy · 09-29-2014, 09:24 AM

Lol! Every single product has mixed reviews. You claim that there are many bad stories to Royal Purple, but Ive seen many good.
I dont know. Maybe I will order Redline from Georgia, but... What is the factory OEM specs for both oils? I thought it was 75W90 for trans AND diff...

Chuck33079 · 09-29-2014, 09:26 AM

Quote:

Originally Posted by Bad Boy

Lol! Every single product has mixed reviews. You claim that there are many bad stories to Royal Purple, but Ive seen many good.
I dont know. Maybe I will order Redline from Georgia, but... What is the factory OEM specs for both oils? I thought it was 75W90 for trans and diff...

I'm not going off stories or reviews, dude. Bob is the oil guy is a forum, like this one, where fluid engineers debate these things. That is where you go for info, not online reviews. The factory specs are in your manual, but there is a very good reason we're all running MT-85.

Bad Boy · 09-29-2014, 09:31 AM

Quote:

Originally Posted by Chuck33079

I'm not going off stories or reviews, dude. Bob is the oil guy is a forum, like this one, where fluid engineers debate these things. That is where you go for info, not online reviews. The factory specs are in your manual, but there is a very good reason we're all running MT-85.

So Redline MT-85 and 75W90 gear oil will eliminate my notchy, otherwise stiff shifting?

Chuck33079 · 09-29-2014, 09:32 AM

Quote:

Originally Posted by Bad Boy

So Redline MT-85 and 75W90 gear oil will eliminate my notchy, otherwise stiff shifting?

If the issue is fluid related, yes. If not you have to start looking at mechanical causes. But this is the most likely solution.

JARblue · 09-29-2014, 09:32 AM

Quote:

Originally Posted by Bad Boy

So Redline MT-85 and 75W90 gear oil will eliminate my notchy, otherwise stiff shifting?

Not guaranteed, but it's a good start. Even if it doesn't, you are better off with it

JARblue · 09-29-2014, 09:26 AM

Redline is what you want

/discussion

JARblue · 09-29-2014, 09:31 AM

I have attached the recommended fluids per the FSM. They are not the same.

Chuck is pretty damn knowledgeable. I have done my research as well. You're getting some solid info here, but we can't force you to accept it as truth.

If you want to question why we all recommend Redline MT-85 over the 75W per the FSM, then maybe you can do the research yourself?

JARblue · 09-29-2014, 09:38 AM

BTW, OP...

I responded to your post on the differential fluid DIY thread. You do not need an extra quart (2 is fine) for the diff fluid. However, the transmission fluid calls for 3 qt, and it is recommended that you get an extra. The fluid you're pumping into the transmission should come out the fill hole when full.

Bad Boy · 09-29-2014, 09:48 AM

Quote:

Originally Posted by JARblue

BTW, OP...

I responded to your post on the differential fluid DIY thread. You do not need an extra quart (2 is fine) for the diff fluid. However, the transmission fluid calls for 3 qt, and it is recommended that you get an extra. The fluid you're pumping into the transmission should come out the fill hole when full.

Z1 begs to differ, it says I should get an extra...?

JARblue · 09-29-2014, 09:52 AM

Quote:

Originally Posted by Bad Boy

Z1 begs to differ, it says I should get an extra...?

Not quite... unless you are planning to remove the rear diff cover (i.e. if you are installing the finned diff cover). Two should be fine since a normal drain does not completely empty the diff, as mentioned.

Quote:

Originally Posted by Z1 Website

2 of these 1 quart bottles needed to change the fluid in your differential. If you are removing the rear cover, we recommend purchasing a third bottle as the actual capacity of the differential is 2.25qts. During a drain and fill you will never be able to completely empty the differential so 2 bottles is sufficient.

Bad Boy · 09-29-2014, 09:38 AM

Just checked their website, I dont think Z1 sells Redline anymore. Looks like they opted for Motul...

Chuck33079 · 09-29-2014, 09:40 AM

Didn't look too hard I guess.

Red Line MT-85

Red Line 75W90 Diff Fluid (1qt)

JARblue · 09-29-2014, 09:40 AM

lol are you just trying to find excuses not to use Redline now?

Red Line 75W90 Diff Fluid (1qt)

Red Line MT-85

Shawa · 09-29-2014, 09:43 AM

I agree with Chuck and Blue, these guys know their s***! I've been using redline for a while, it's great.

09-29-2014, 09:19 AM	#1 (permalink)
Chuck33079 A True Z Fanatic Join Date: Nov 2011 Location: Houston Posts: 12,265 Drives: 2011 370ztt Rep Power: 29539	No, but it's your car. I'm out. You've gotten plenty of good advice and you're going in a different direction out of laziness or cheapness. Z1 is in Georgia and carries Redline. Good luck. __________________ 2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

09-29-2014, 09:26 AM	#7 (permalink)
JARblue A True Z Fanatic Join Date: Mar 2011 Location: Austin, TX Age: 44 Posts: 36,450 Drives: 11 Z34, 98 E36 M3 Rep Power: 2684441	Redline is what you want /discussion Chuck33079, Shawa and sizziano like this. __________________ 2011 370Z 6MT Sport Gun Metallic \| ARC \| CJM \| Ecutek \| FI \| Fujimura \| R2C \| SPL \| Stillen \| TWM \| Z1 \| ZSpeed \|

09-29-2014, 09:38 AM	#9 (permalink)
JARblue A True Z Fanatic Join Date: Mar 2011 Location: Austin, TX Age: 44 Posts: 36,450 Drives: 11 Z34, 98 E36 M3 Rep Power: 2684441	BTW, OP... I responded to your post on the differential fluid DIY thread. You do not need an extra quart (2 is fine) for the diff fluid. However, the transmission fluid calls for 3 qt, and it is recommended that you get an extra. The fluid you're pumping into the transmission should come out the fill hole when full. __________________ 2011 370Z 6MT Sport Gun Metallic \| ARC \| CJM \| Ecutek \| FI \| Fujimura \| R2C \| SPL \| Stillen \| TWM \| Z1 \| ZSpeed \|

09-29-2014, 09:40 AM	#13 (permalink)
Chuck33079 A True Z Fanatic Join Date: Nov 2011 Location: Houston Posts: 12,265 Drives: 2011 370ztt Rep Power: 29539	Didn't look too hard I guess. Red Line MT-85 Red Line 75W90 Diff Fluid (1qt) jwick and JARblue like this. __________________ 2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

09-29-2014, 09:40 AM	#14 (permalink)
JARblue A True Z Fanatic Join Date: Mar 2011 Location: Austin, TX Age: 44 Posts: 36,450 Drives: 11 Z34, 98 E36 M3 Rep Power: 2684441	lol are you just trying to find excuses not to use Redline now? Red Line 75W90 Diff Fluid (1qt) Red Line MT-85 __________________ 2011 370Z 6MT Sport Gun Metallic \| ARC \| CJM \| Ecutek \| FI \| Fujimura \| R2C \| SPL \| Stillen \| TWM \| Z1 \| ZSpeed \|

09-29-2014, 09:24 AM	#2 (permalink)
Bad Boy Enthusiast Member Join Date: Aug 2014 Location: Orlando Age: 34 Posts: 295 Drives: 370Z 6SPD Touring Rep Power: 11	Lol! Every single product has mixed reviews. You claim that there are many bad stories to Royal Purple, but Ive seen many good. I dont know. Maybe I will order Redline from Georgia, but... What is the factory OEM specs for both oils? I thought it was 75W90 for trans AND diff...

09-29-2014, 09:38 AM	#12 (permalink)
Bad Boy Enthusiast Member Join Date: Aug 2014 Location: Orlando Age: 34 Posts: 295 Drives: 370Z 6SPD Touring Rep Power: 11	Just checked their website, I dont think Z1 sells Redline anymore. Looks like they opted for Motul...

09-29-2014, 09:43 AM	#15 (permalink)
Shawa Base Member Join Date: Apr 2012 Location: New Jersey Posts: 143 Drives: 2012 Fairlady Z MT Rep Power: 15	I agree with Chuck and Blue, these guys know their s***! I've been using redline for a while, it's great. JARblue likes this.

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