onebad82z

iTrader: (1)

No.

My '00 S10 is factory filled with Snychromesh and I changed it at 25k with GM Snychromesh.No differences.Just fresh fluid/maintenance.I then again changed it at 125k but didn't want to pay some ridiculous $20/quart so I switched to the Amsoil as it was new to the market and only $7/quart.After 15k miles nowI can honestly say it is more objectional to shift in the cold (mornings/NY weather here) than the GM Snychromesh was.Once warmed up it does shift easier and does feel a little better/smoother.I myself will leave it in as I go easy on it till it warms up fully,but if you tend to shift a lil rough in the first few minutes of cold driving you will get better/easier shifts with the GM stuff.

AINT SKEERED

iTrader: (2)

now that the lucas additive has been in my car for a while, I do like it in warm weather or after the car has been warmed up for about 20 minutes or so. But when I pull my car to the track on a cold day on a trailer and unload it , I take it for a spin to get gear oil and trans oil warmed up but the trans does not warm up enough and I miss the 3rd almost every pass . In warm weather, It is great though. I beat the hell out of my car at the track to get good times but there is nothing that will **** you off more tehn missing shifts pass after pass when others look at you as a good driver with a stick and you cant make a good pass to save your life on a night with -1500 da

Tobynine9

iTrader: (17)

Don't know if I've given my .02 yet.

Per my transmission rebuilder, who's rebuilt T56s for numerous hi-perf shops in my area, don't use Dex III. Only use Synchromesh or similar (either RP Synchromax or Amsoil Synchromesh). The Dex III is recommended by GM because it will lubricate the tranny internals better than the alternatives when cold, preventing unecessary wear from morons who don't warm it up before beating on it. But the Synchromesh will take care of everything MUCH better when warm, which is where 80%+ of your shifting is done (especially if you care about your car enough to join and post on a forum like this).

glennhl

I'll add an experience from this weekend. I've been running the Honda Z1 ATF for years now both in my 94 and my 01. I had an LS7 clutch put in about a month ago and I didn't have time to go by and buy some Honda ATF, so I told the shop to put in Dexron III. The tranny felt really notchy and I wondered if they didn't bleed the clutch hydraulics enough. I decided to change the tranny fluid yesterday back to Honda ATF and VIOLA, the tranny is shifting much smoother.

TransSlam

iTrader: (8)

I use chain saw bar oil, it shifts like no other-gotta getcha some its da shizzzzz

Doski

Red line D4 ATF.........works perfeckt. I noticed the gears went in smoother.

REDSS01

iTrader: (25)

Pennzoil synchromesh...anyone? I just bought it by mistake. Should I take it back to Autozone?

jerflash

no you can use that
syncromesh is good and the pennzoil should be to the same specs as the gm stuff

im using the brand of syncromesh that rockland standard gear sells

30th TA 0219

I sell Acuras, and just went back to parts and picked up 4 qts of the Honda Z1 ATF. I'm about to change out my clutch and hydraulis in the next week or two, so might as well change tranny fluid too!

BriancWS6

iTrader: (18)

Damn all this time and it's still the same, diff people with diff opinions. I will be refilling mine soon, rebuild in progress, guess I better pick something soon....

LPTXZ28

iTrader: (18)

Penzoil synchromesh. Works great.

pknowles

iTrader: (1)

I just switched to Redline ATF Dextron III D4 and the trans feels great. The regular Valvoline Dextron III I was using would breakdown on hot days. Trans always went back to normal after I changed the fluid but I was tired of changing the fluid all the time.

Wesmanw02

iTrader: (4)

Sounds good to me, Mobil 1 is excellent.

I've also heard good things about GM Synchromesh, I definitely wouldn't put regular old ATF in it though, especially if you run the car hard. Its worth the extra few bucks for the best protection for your rather expensive T56

chucky2

8,000th view on this thread...can maybe this become a sticky?

MeentSS02

iTrader: (11)

Welp, I went a slightly different route and am going to try Specialty Formulations Synchro Glide. We'll see what happens...should be here late this week/early next.

dailydriver

Mine runs just fine with that stuff. I don't even have the cold weather "notchiness/grind" on the 1-2 shift like others who've used it. As far as I know it is the same exact stuff that's in the GM Synchromesh bottles (anyone know this for sure, Pennzoil won't admit it for obvious reasons). Anyway, it's a big improvement over the petroleum Dex 3 that was in there before.

CaliboyTA

iTrader: (2)

The shop who rebuilt my tranny told me to use regular dex 3 atf fluid and not full synthetic because synthetics is to slippery for the syncros. I went to other tranny shops, and they told me synthetics is fine to use in our vehicle, but since the shop did my rebuilt i listened to him and put regular dex 3

chucky2

MeentSS02- Can you let us know how that lube works...MolaKule over at BITOG forums is highly respected, and that's his lube company he just started up.

Looking at the spec's, that seems to be a pretty kick 8ss lube...thicker when cold than ATF, but still, it should be pretty awesome just looking at the specs.

Even if the result is bad...can you still post back here? I'm just really curious to see how that stuff works...your the first I've seen post on using a SF lube in a F-body T-56.

Thanks!

Chuck

MeentSS02

iTrader: (11)

I'm gonna send you a PM to help you help me remember to do this...sometimes, this kinda stuff slips my mind.

BITOG is where I heard about this, and for the price, it really can't hurt to try. I was looking for Pennzoil Synchromesh, but since I didn't find any local, I just figured what the hell. Might as well give this a shot.

chucky2

MeentSS02- Thanks man! Got your PM...I'll bug you again in 3-4 weeks, just to see how it's going with the initial impression.

I almost can't wait for my FX4 Level II to get out of warranty...soon as it does, I'm ordering up some of MolaKule's stuff for my diffs and transfer case.

Chuck