Transmission Additive - TriStateTuners.com :: Home of Tristate Auto Enthusiast

AutobahnRacer · 05-03-2010, 10:24 AM

I know everyone is going to say the syncros are probably going bad, but right now I don't have the money to fix it properly.

SO I am trying to find recommendations for an additive for my manual transmission because 2nd grinds (higher rpm), and occasionally some other gears. Any advice on an additive would be great. Thanks

jen. · 05-03-2010, 10:43 AM

Quote:

Originally Posted by Carministrator

I know everyone is going to say the syncros are probably going bad, but right now I don't have the money to fix it properly.

SO I am trying to find recommendations for an additive for my manual transmission because 2nd grinds (higher rpm), and occasionally some other gears. Any advice on an additive would be great. Thanks

Just out of curiosity what kind of car do you have?

I have an 07 SI and Honda did a GOD AWFUL job with the 6sp MT. I've already had my third gear synchro replaced, and now my second grinds like crazy, especially when hot and at high RPMs (which was totally embarrassing yesterday at Sonic!)

Anyway, I've heard Amsoil MTF does wonders on the SIs, but I don't know what kind of car you have, or if it will work on it. I have yet to change out my MTF though, but I will do so soon, and if it takes away my grind, I'll let you know--I know its worked for others.

AutobahnRacer · 05-03-2010, 11:10 AM

I have an 03 Jetta GLS, and apparently on Vdubs its common for second to grind. I really dont have a ton of money right now, so I need more of a band-aid for the issue rather than surgery.

So changing all the tranny fluid is also out at this point. I'm looking for something to just dump in with the existing fluid.

And I hear you with the embarrassment part. Nothing worse than driving by someone and having your car go crrrkkk.

jpalamar · 05-03-2010, 11:10 AM

I would bleed the clutch and change trans fluids to RP w/ Syncromesh. I love it(it is a little on the thick side so in winter I let my car run a few minutes before driving but I bank though gears no problem. Had it in my car for over 15k miles and I'm probally gonna do it again at the end of summer.)

420sx · 05-03-2010, 11:23 AM

Royal Purple or GM Synchromesh.

I used the GM synchromesh in one of my integras that had a third gear grind, and while it didnt completely fix the problem, it did help a LOT. Instead of it grinding at 5500+ it would only do it when I completely revved out 2nd. Its definitely a worthwhile shot as a "band-aid fix."

AutobahnRacer · 05-03-2010, 01:40 PM

Thanks for all the quick responses. Just one more question, is it better to have thicker or thinner fluid?

russiankid · 05-03-2010, 02:04 PM

Quote:

Originally Posted by Carministrator

Thanks for all the quick responses. Just one more question, is it better to have thicker or thinner fluid?

Thicker fluid will get around better, but you don't want it to thick. Fluid becomes thin when it gets hot. I would go with RP stuff.

AutobahnRacer · 05-05-2010, 10:08 PM

Thanks everyone. New fluids in and its shifting a lot beater in all gears. Second still grinds but not as bad. I'll just continue double clutching second.

05-03-2010, 10:24 AM	#1
AutobahnRacer Tri-State Post Whore Join Date: Jun 2006 Location: TriState, PA Member #2056 iTrader: (3)	Transmission Additive I know everyone is going to say the syncros are probably going bad, but right now I don't have the money to fix it properly. SO I am trying to find recommendations for an additive for my manual transmission because 2nd grinds (higher rpm), and occasionally some other gears. Any advice on an additive would be great. Thanks Last edited by AutobahnRacer; 05-03-2010 at 10:32 AM.

05-03-2010, 11:23 AM	#5
420sx Tri-State Post Whore Join Date: Oct 2006 Location: Warrington, PA Member #2811 My Ride: '98 240sx, 98 Impreza L, 00 SV650 iTrader: (5)	Royal Purple or GM Synchromesh. I used the GM synchromesh in one of my integras that had a third gear grind, and while it didnt completely fix the problem, it did help a LOT. Instead of it grinding at 5500+ it would only do it when I completely revved out 2nd. Its definitely a worthwhile shot as a "band-aid fix." __________________ loltst

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Can A fuel additive decrease emissions?	JDMTyler3326	Engine Performance	6	08-07-2009 01:45 PM
Mishimoto Releases "Liquid Chill" Performance Radiator Additive	Mishimoto	Mishimoto	5	07-10-2009 12:46 AM
can't start bike after using NOS energy drink as an additive	twastheglow	Off-Topic	39	05-31-2009 10:09 AM
New additive in gasoline? Sudden drop in gas mileage over the past 2 weeks...	criz	General Car Related Chat	19	03-25-2008 11:16 PM

05-03-2010, 11:10 AM	#3
AutobahnRacer Tri-State Post Whore Join Date: Jun 2006 Location: TriState, PA Member #2056 iTrader: (3)	I have an 03 Jetta GLS, and apparently on Vdubs its common for second to grind. I really dont have a ton of money right now, so I need more of a band-aid for the issue rather than surgery. So changing all the tranny fluid is also out at this point. I'm looking for something to just dump in with the existing fluid. And I hear you with the embarrassment part. Nothing worse than driving by someone and having your car go crrrkkk.

05-03-2010, 11:10 AM	#4
jpalamar TST Ruined My Life! Join Date: May 2009 Location: Collegeville, PA Member #13773 My Ride: 03 Corvette Z06 iTrader: (3)	I would bleed the clutch and change trans fluids to RP w/ Syncromesh. I love it(it is a little on the thick side so in winter I let my car run a few minutes before driving but I bank though gears no problem. Had it in my car for over 15k miles and I'm probally gonna do it again at the end of summer.)

05-03-2010, 01:40 PM	#6
AutobahnRacer Tri-State Post Whore Join Date: Jun 2006 Location: TriState, PA Member #2056 iTrader: (3)	Thanks for all the quick responses. Just one more question, is it better to have thicker or thinner fluid?

05-05-2010, 10:08 PM	#8
AutobahnRacer Tri-State Post Whore Join Date: Jun 2006 Location: TriState, PA Member #2056 iTrader: (3)	Thanks everyone. New fluids in and its shifting a lot beater in all gears. Second still grinds but not as bad. I'll just continue double clutching second.