Switched to MT90 today

m4a1mustang · 01-31-2010, 04:44 PM

I replaced the factory fill with Redline MT90 today. Managed to break the fluid pump so I had to run out and pick up another. Need to come up with a better way to fill the transmission as laying under the car with the stupid pump is annoying.

Anyways, the shifts are much smoother on cold start now. It feels like the car has already warmed up.

HellfighterZ · 01-31-2010, 06:47 PM

Awesome!

vipor · 01-31-2010, 09:25 PM

Yeah me too. Did it about a week ago just before this most recent cold snap. Makes 1st and 2nd not a PITA to use early in the morning.

1slow370 · 02-01-2010, 12:19 AM

you know those cheap vacuum pump brake bleed kits? i use one hooked up in reverse with fishtank line to do my pumping works like a F'n charm. great for pumping stuff into the gas tank, siphoning out fluids, checking vacuum solenoids and doing a million other things except bleeding brakes.

also did you use regular mt-90 or the mt90L with the friction modifier?

phantom21 · 02-01-2010, 06:27 AM

The suction pump I bought from Autozone was a joke. It would just barely put a trickle in; I could never get it to work. What I finally ended up doing was taking a 1/2" rubber tubing and a turkey baster and just feeding it into the tube. It worked so much better and FASTER than the pump.

m4a1mustang · 02-01-2010, 08:45 AM

1slow370: I used regular MT90

phantom21: The first one I bought sucked. Couldn't get anything going, so I went to Advanced Auto and got one of those quart/gallon bottle pumps. It worked MUCH better but was pretty flimsy so I trashed it after I was done.

Cjanik · 02-01-2010, 09:13 AM

yeah I made the first one work, stupid pump took me 4 hours to fill up the transmission and differential. needless to say, i threw the damn thing away when I was finished.

and for the feel, I seem to get locked out of first gear more often from Neutral. I have to pump the clutch once to line up the syncro's or whatever it does to be able to get into 1st gear. this only happens in the cold.

m4a1mustang · 02-01-2010, 09:15 AM

I felt like maybe that happened to me, but I haven't driven the car enough to duplicate it.

vipor · 02-01-2010, 09:16 AM

I ended up using 2 parts MT90 and 1 part MTL since it's typically warmer here.

My brother's shop had what looked like a bicycle pump for doing tranny and diff fluids. The chamber was probably 8" or so in diameter and it actually had a bike pump on there to pressurize it. We opted instead for compressed air which sped the process along. Don't worry, we flushed the pump with Lexus Synthetic gear oil first to make sure it wasn't some mix.

m4a1mustang · 02-01-2010, 09:17 AM

Yeah, I'm going to be looking for a dedicated gear oil pump. I don't want to spend too much but I just don't want to deal with any of this cheapy AutoZone nonsense.

ChrisSlicks · 02-01-2010, 01:18 PM

Quote:

Originally Posted by Cjanik

and for the feel, I seem to get locked out of first gear more often from Neutral. I have to pump the clutch once to line up the syncro's or whatever it does to be able to get into 1st gear. this only happens in the cold.

This is common, but more so in the cold. The reason is, with the clutch out, the input shaft to the transmission is spinning, when you clutch in the input shaft continues to spin for a second or two from residual momentum which gives you time to select a gear. When the fluid is cold the input shaft will stop spinning very quickly due to the highly viscous fluid quickly robbing the input shaft of its momentum. When the shaft is not spinning it is a crapshoot as to whether or not it will actually engage a gear.

g96818 · 02-02-2010, 03:23 AM

sweet, i'm about to switch over also on my next oil change. had bought a whole case for my celica, but i think my new toy will enjoy it more

Cjanik · 02-04-2010, 01:01 AM

Quote:

Originally Posted by ChrisSlicks

This is common, but more so in the cold. The reason is, with the clutch out, the input shaft to the transmission is spinning, when you clutch in the input shaft continues to spin for a second or two from residual momentum which gives you time to select a gear. When the fluid is cold the input shaft will stop spinning very quickly due to the highly viscous fluid quickly robbing the input shaft of its momentum. When the shaft is not spinning it is a crapshoot as to whether or not it will actually engage a gear.

ah gotcha, thanks for the explanation.

I thought of two possibilities before: either I did something wrong (i.e. not enough); or I was supposed to mix the MT90 w/ a less viscous fluid. Glad to see its neither!

vipor · 02-04-2010, 09:55 AM

Quote:

Originally Posted by ChrisSlicks

This is common, but more so in the cold. The reason is, with the clutch out, the input shaft to the transmission is spinning, when you clutch in the input shaft continues to spin for a second or two from residual momentum which gives you time to select a gear. When the fluid is cold the input shaft will stop spinning very quickly due to the highly viscous fluid quickly robbing the input shaft of its momentum. When the shaft is not spinning it is a crapshoot as to whether or not it will actually engage a gear.

Did some double-pumping this morning and it made 1st a breeze. Guess I'll have to make that a habit when I first start her on a cold morning.

ChrisSlicks · 02-04-2010, 10:41 AM

Quote:

Originally Posted by vipor

Did some double-pumping this morning and it made 1st a breeze. Guess I'll have to make that a habit when I first start her on a cold morning.

Yeah, I usually have to double clutch 1st and 2nd for the first mile or 2 until things start to warm up. Need an electric blanket for my transmission

01-31-2010, 04:44 PM	#1 (permalink)
m4a1mustang A True Z Fanatic Join Date: Feb 2009 Location: Northern VA Posts: 55,385 Drives: on two wheels Rep Power: 6962	Switched to MT90 today I replaced the factory fill with Redline MT90 today. Managed to break the fluid pump so I had to run out and pick up another. Need to come up with a better way to fill the transmission as laying under the car with the stupid pump is annoying. Anyways, the shifts are much smoother on cold start now. It feels like the car has already warmed up. __________________ - Steve Zs & Coffee - Saturdays at 10AM in Fairfax, VA and Columbia, MD (Click the banner!) LIKE us on Facebook!

01-31-2010, 09:25 PM	#3 (permalink)
vipor A True Z Fanatic Join Date: Aug 2009 Location: Euless, TX [ DFW ] Age: 42 Posts: 13,531 Drives: Nismo 09-0183 QAB Rep Power: 49	Yeah me too. Did it about a week ago just before this most recent cold snap. Makes 1st and 2nd not a PITA to use early in the morning. __________________ 2009 NISMO # 0193 \| QAB \| Albums! \| 05.04.10 (Dynojet) 291.94hp/248.28tq Oil Cooler (DIY) \| Custom Headlights \| GTSPEC Braces \| F.I. Long Tube Headers

02-01-2010, 06:27 AM	#5 (permalink)
phantom21 Base Member Join Date: Jul 2009 Location: South Carolina Posts: 153 Drives: 370Z Base+Sport 6M Rep Power: 16	The suction pump I bought from Autozone was a joke. It would just barely put a trickle in; I could never get it to work. What I finally ended up doing was taking a 1/2" rubber tubing and a turkey baster and just feeding it into the tube. It worked so much better and FASTER than the pump. __________________ 2009 PG 6spd Sport \|\| 30% side tint, 15% rear \|\| All Redline fluids \|\| Berk HFC's intalled~PITA Bolt \|\| Stillen G3's \|\| Berk CBE \|\| BC Racing Coilovers with 10K/12K Swift springs & RA valving\|\| SPL rear camber arms \|\| 20mm/15mm spacers

02-01-2010, 08:45 AM	#6 (permalink)
m4a1mustang A True Z Fanatic Join Date: Feb 2009 Location: Northern VA Posts: 55,385 Drives: on two wheels Rep Power: 6962	1slow370: I used regular MT90 phantom21: The first one I bought sucked. Couldn't get anything going, so I went to Advanced Auto and got one of those quart/gallon bottle pumps. It worked MUCH better but was pretty flimsy so I trashed it after I was done. __________________ - Steve Zs & Coffee - Saturdays at 10AM in Fairfax, VA and Columbia, MD (Click the banner!) LIKE us on Facebook!

02-01-2010, 09:15 AM	#8 (permalink)
m4a1mustang A True Z Fanatic Join Date: Feb 2009 Location: Northern VA Posts: 55,385 Drives: on two wheels Rep Power: 6962	I felt like maybe that happened to me, but I haven't driven the car enough to duplicate it. __________________ - Steve Zs & Coffee - Saturdays at 10AM in Fairfax, VA and Columbia, MD (Click the banner!) LIKE us on Facebook!

01-31-2010, 06:47 PM	#2 (permalink)
HellfighterZ Base Member Join Date: Nov 2009 Location: Oklahoma Posts: 41 Drives: 09 370z sport 6mt Rep Power: 16	Awesome!

02-01-2010, 12:19 AM	#4 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7251	you know those cheap vacuum pump brake bleed kits? i use one hooked up in reverse with fishtank line to do my pumping works like a F'n charm. great for pumping stuff into the gas tank, siphoning out fluids, checking vacuum solenoids and doing a million other things except bleeding brakes. also did you use regular mt-90 or the mt90L with the friction modifier?

02-01-2010, 09:13 AM	#7 (permalink)
Cjanik Track Member Join Date: May 2009 Location: Las Vegas Posts: 578 Drives: N/A Rep Power: 17	yeah I made the first one work, stupid pump took me 4 hours to fill up the transmission and differential. needless to say, i threw the damn thing away when I was finished. and for the feel, I seem to get locked out of first gear more often from Neutral. I have to pump the clutch once to line up the syncro's or whatever it does to be able to get into 1st gear. this only happens in the cold.

02-01-2010, 09:16 AM	#9 (permalink)
vipor A True Z Fanatic Join Date: Aug 2009 Location: Euless, TX [ DFW ] Age: 42 Posts: 13,531 Drives: Nismo 09-0183 QAB Rep Power: 49	I ended up using 2 parts MT90 and 1 part MTL since it's typically warmer here. My brother's shop had what looked like a bicycle pump for doing tranny and diff fluids. The chamber was probably 8" or so in diameter and it actually had a bike pump on there to pressurize it. We opted instead for compressed air which sped the process along. Don't worry, we flushed the pump with Lexus Synthetic gear oil first to make sure it wasn't some mix. __________________ 2009 NISMO # 0193 \| QAB \| Albums! \| 05.04.10 (Dynojet) 291.94hp/248.28tq Oil Cooler (DIY) \| Custom Headlights \| GTSPEC Braces \| F.I. Long Tube Headers

02-01-2010, 09:17 AM	#10 (permalink)
m4a1mustang A True Z Fanatic Join Date: Feb 2009 Location: Northern VA Posts: 55,385 Drives: on two wheels Rep Power: 6962	Yeah, I'm going to be looking for a dedicated gear oil pump. I don't want to spend too much but I just don't want to deal with any of this cheapy AutoZone nonsense. __________________ - Steve Zs & Coffee - Saturdays at 10AM in Fairfax, VA and Columbia, MD (Click the banner!) LIKE us on Facebook!

02-02-2010, 03:23 AM	#12 (permalink)
g96818 Track Member Join Date: May 2009 Location: A rock in a big pond Posts: 681 Drives: 2009 370Z, 2012 M56 Rep Power: 3394	sweet, i'm about to switch over also on my next oil change. had bought a whole case for my celica, but i think my new toy will enjoy it more __________________ CZP are lying thieves!

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