2nd gear synchro FIX- MT owners read this thread - Page 16 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

schtebie · 12-23-2012, 11:19 AM

Quote:

Originally Posted by gmookher

I will be doing Uoa when I hit about 20k miles, pointless before that on a tranny, even tho my Uoa will be off a FI car, even better for na guys.

Great recommendation on the Pentosin. Just swapped over two nights ago and the difference in shifting smoothness is very noticeable especially with ambient temperatures just barely over 30 F.

Laika · 12-23-2012, 02:30 PM

I've been running Pentosin for about 1500 miles now. It honestly took about 1000 miles for me to really see the complete difference. Shifts are incredibly smoother now. I always felt like this was a bit of jerky car no matter how well I clutched but the Pentosin has changed this completely. I picked up a friend of mine to go to a party and it was her first time in this car; she didn't realize it was a manual till we parked. THAT smooth.

If you haven't yet, do yourself the favor and pick up some Pentosin.

bpracer · 12-23-2012, 07:08 PM

Just changed the trans oil and went for a ride. My transmission was pretty smooth to begin with, but I does seem to shift even smoother now.

I got the Pentosin from O'Reilly Auto Parts, had to go to two of them and ask for it, as it was in the back store room. Not all of them have it in stock.

OrbitalEllipses · 12-23-2012, 08:12 PM

Quote:

Originally Posted by Laika

I picked up a friend of mine to go to a party and it was her first time in this car; she didn't realize it was a manual till we parked. THAT smooth.

I believe that has more to do with your ability and her inattentiveness/sensitivity than trans fluid.

Now that temps are falling into the low 30s my gearbox has really started misbehaving. Not shifting into 1st at 4mph, being unable to downshift to 2nd at 25mph without SHOVING it into gear...this gearbox certainly doesn't like low temps, that's for sure.

gonzo · 12-24-2012, 09:45 AM

Quote:

Originally Posted by ADebelius

I'm just confused. The owners manual specs a 75w-90 fluid, not a 75w-85 as mentioned. And the low end range for a 75w-90 fluid at temperature is ~13cst. The Pentosin is almost half that.

Check the manual someone posted on this forum, I believe it specs a 75-90 AND 75-85.

Esoteric · 12-24-2012, 11:13 AM

Quote:

Originally Posted by Laika

I've been running Pentosin for about 1500 miles now. It honestly took about 1000 miles for me to really see the complete difference. Shifts are incredibly smoother now. I always felt like this was a bit of jerky car no matter how well I clutched but the Pentosin has changed this completely. I picked up a friend of mine to go to a party and it was her first time in this car; she didn't realize it was a manual till we parked. THAT smooth.

If you haven't yet, do yourself the favor and pick up some Pentosin.

Glad it worked out for you! Since we did your car we have done two more and another with the Redline. Everyone noticed a difference.

Dezoris · 12-24-2012, 11:21 AM

It was 18 degrees car was outside for 8 hours and car would not go into second for about 3 miles.
However no notchiness in gear selection before and after that. This was the first time the Pentosin did not hide the trans issues.

roddy · 12-24-2012, 07:45 PM

Quote:

Originally Posted by gonzo

Check the manual someone posted on this forum, I believe it specs a 75-90 AND 75-85.

That's for the rear end. Trans spec is 75W90, but many have found that a thinner fluid works better. Pentosin made a very noticeable improvement in mine.

aced86 · 12-25-2012, 02:26 PM

Will the pentosin , work well for those of us in so cal and under track day use ? What would you suggest on service intervals if tracking once a month and still using as a daily driver ? Also I'm looking into price wholesale on Thursday may be able to save local members some Muuula

Dezoris · 12-25-2012, 10:26 PM

Quote:

Originally Posted by aced86

Will the pentosin , work well for those of us in so cal and under track day use ? What would you suggest on service intervals if tracking once a month and still using as a daily driver ? Also I'm looking into price wholesale on Thursday may be able to save local members some Muuula

The main reason to use Pentosin is for colder weather performance. There are not too many complaints about shift feel from those in hot climates. Or at least that I have read.

gmookher · 12-26-2012, 02:43 AM

I use it in phoenix..

GoSharks · 12-28-2012, 11:49 AM

39 degrees this morning, shifting into 2nd like butter with Pentosin that was put in on Friday. Thanks gmookher for the tip. Shifting issues was my biggest issue with my BRZ. Switching to Pentosin is a very noticeable change under all conditions at least with my transmission.

gmookher · 12-28-2012, 03:07 PM

'Welcome bro!

gonzo · 12-28-2012, 07:26 PM

Quote:

Originally Posted by roddy

That's for the rear end. Trans spec is 75W90, but many have found that a thinner fluid works better. Pentosin made a very noticeable improvement in mine.

Check it again, it says the tran and diff gear oils can be 75w-85 and/or 75w-90

I'm looking at page RM-3.

12-23-2012, 02:30 PM	#212
Laika When In Doubt... Join Date: May 2011 Drives: Slowww Location: PA215 Posts: 1,844 Thanks: 1,023 Thanked 752 Times in 412 Posts Mentioned: 20 Post(s) Tagged: 0 Thread(s)	I've been running Pentosin for about 1500 miles now. It honestly took about 1000 miles for me to really see the complete difference. Shifts are incredibly smoother now. I always felt like this was a bit of jerky car no matter how well I clutched but the Pentosin has changed this completely. I picked up a friend of mine to go to a party and it was her first time in this car; she didn't realize it was a manual till we parked. THAT smooth. If you haven't yet, do yourself the favor and pick up some Pentosin. __________________ Join the Galaxy Blue Silica BRZ registry below: https://docs.google.com/spreadsheet/...2c&usp=sharing

12-24-2012, 11:21 AM	#217
Dezoris Senior Member Join Date: Aug 2012 Drives: FR-S Location: IL Posts: 2,857 Thanks: 519 Thanked 2,998 Times in 1,095 Posts Mentioned: 159 Post(s) Tagged: 1 Thread(s)	It was 18 degrees car was outside for 8 hours and car would not go into second for about 3 miles. However no notchiness in gear selection before and after that. This was the first time the Pentosin did not hide the trans issues. __________________ SAVAGEGEESE

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12-25-2012, 02:26 PM	#219
aced86 Member Join Date: Oct 2012 Drives: 2013 frs asphalt m/t Location: San Gabriel valley/ IE Posts: 85 Thanks: 3 Thanked 53 Times in 21 Posts Mentioned: 42 Post(s) Tagged: 0 Thread(s)	Will the pentosin , work well for those of us in so cal and under track day use ? What would you suggest on service intervals if tracking once a month and still using as a daily driver ? Also I'm looking into price wholesale on Thursday may be able to save local members some Muuula

12-26-2012, 02:43 AM	#221
gmookher Banned Join Date: Aug 2012 Drives: VortechSC,BorlaEL,Perrin,GCRace Location: HighHeatHighAltitudeAZ,USA Posts: 2,254 Thanks: 458 Thanked 669 Times in 394 Posts Mentioned: 9 Post(s) Tagged: 2 Thread(s)	I use it in phoenix..

12-28-2012, 11:49 AM	#222
GoSharks Member Join Date: Dec 2011 Drives: BRZ Limited, WRB, 6 MT Location: Saratoga, CA Posts: 82 Thanks: 35 Thanked 7 Times in 6 Posts Mentioned: 1 Post(s) Tagged: 1 Thread(s)	39 degrees this morning, shifting into 2nd like butter with Pentosin that was put in on Friday. Thanks gmookher for the tip. Shifting issues was my biggest issue with my BRZ. Switching to Pentosin is a very noticeable change under all conditions at least with my transmission.

12-28-2012, 03:07 PM	#223
gmookher Banned Join Date: Aug 2012 Drives: VortechSC,BorlaEL,Perrin,GCRace Location: HighHeatHighAltitudeAZ,USA Posts: 2,254 Thanks: 458 Thanked 669 Times in 394 Posts Mentioned: 9 Post(s) Tagged: 2 Thread(s)	'Welcome bro!

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