hey guys, Im new to the Vete forums. Ive been a member of other forums so I understand how they work. Anyway, just got a vete and I am loving it. its a 2000 c5 38000 on it. its got a 6 speed and borla exhaust. anyway, what trans fluid you guys prefer?

thanks in advance.

 

I read in another thread amsoil torque-drive which I used and haven't had any problems

 

cool. i was thinking mobil 1 synthetic trans fluid. it calls for mic/dex 3. just wanted to see what guys who have ran them fora while think.

 

@ your name.

 

ya im kinda big. but once im in its cake. my daily driver is a lifted superduty powerchoke. i fit comfortably in that baby.

 

I did engine/trans/diff all redline when i got the car. The trans had purple fluid, assume royal purple. Whatever it was, the redline is smoother. I knew a road race team that only used redline, even though sponsored by another oil manufacture, which i found interesting.

 

thats what i run in my truck and dirtbike. Thats what i will run in the vete. thanks man. Im sure its worth the xtra money. what weight do these things call for?

 

I have redline in my air compressor and lawn mower i would say I am a believer!

 

lol im runnin some cheap crap in my compressor, as for the mower its a push mower. a motorless one. so i use wd40 on it. its prob worth the extra money to use red line.

 

That's what I used. Changed to Mobil 1 synthetic ATF about 3 weeks ago and I am a very happy camper. I immediately noticed the smoother shifting compared to the OEM stuff that was in there. It also seems a little quieter.

 

another Mobil 1 syn trans fluid user here....
126K (s)miles on my '01

 

I also have a 2000 and just put amsoil in the trans and diff. all of the research I did here said to stay away from the synthetic trans fluid (except for the amsoil) due to the paper blocker rings in the 2000. I used the ADT in the trans and the severe gear in the diff.
so 2 things. 1 please do more research before you put mobil 1 in your trans and 2 change the dif fluid while you're down there.

 

I just put some Royal Purple Synchromax in my RPM built MN12 6 speed and maxgear into my RPM 3.42 differential this weekend. Smoother than the regular Dex III that I initially run it with was. RPM suggested it to me. Synchromax is specifically a manual transmission fluid. I like it so far

 

No "weight" involved. They use automatic transmission fluid, not gear lube.
If you want to use Red Line, then their D4 ATF is the ticket.

If you want to use Amsoil (my personal choice), then I prefer their Torque-Drive ATF.

HTH

 

Dexron non synthetic here....

 

this is interesting, paper blocker rings? So just run some havoline md3? I guess its good stuff as long as you change it every 5-10k? What weight does the rear end call for? ive got a bunch of 80-140 redline left over from my gears in my superduty.

 

I used Royal Purple in mine, also a 2000.. I had some very notchy shifting prior to that fluid change, and I am almost certain someone had used Mobil 1 in it before me, and probably destroyed the paper backing rings. Much smoother since the change. Amsoil is great too. Only benefit Royal Purple has over Amsoil - It's in major auto parts stores. Check out their website, they list one for the 2000, Synchromesh I believe. Amsoil or RP, you won't be sorry either way.

 

There's tons of info here on the Forum about the C5 manual tranny and which lube to use. I did a LOT of research here on the subject.
Lubes are not a simple subject at all, but I found a few general rules-of-thumb when delving thru all the info.

The really big issue, that almost everyone seems to agree on, is that before sometime in 2000, the tranny did have cellulose (paper) blocking rings, and "some" synthetic formulas do not dance well with the cellulose blockers (M1 seems to be the main offender). My response for my 2000 was to not take a chance, and stick with non-synthetic, even though there are lots of good results with Amsoil/Redline/RP.

Another subject is the Syncromax/Syncromesh formula vs the ATF formula. Generally the Dexron 3-compatible ATF oils offered by most of the companies are slightly lower viscosity that the Syncromax formulas. GM, Redline, and Amsoil list their preferred oil for the C5 as their ATF. Royal Purple lists it's Syncromax as the preferred (go figure).

My only actual experience here was when I tried the GM Syncromax, after reading glowing reports by some Forum members. In MY 2000, the Syncromax was waaay too stiff, very poor shifting.
I switched to cheap old Penzoil Dexron 3, and Voila, what a dream!

Now, it seems that the old Dexron 3 is a different, slightly thicker formulation than the new D-6, so it might fit GM's original recommendations better. So, maybe i did the right thing - so far so good, it shifts better than new.


So, the bottom line may be: if you drive your car like you stole it, better do some rresearch and get the best oil available from one of the "Gucci" vendors. If you don't abuse it, I bet good old Penzoil Dexron 3, CHANGED AT REASONABLE INTERVALS, will make your tranny outlast your car.

One other hint, take your shifter out and lube it - WOW.


Whew,
Wrench

 

Thanks man. ya ive got some havoline MD3 left over from my powerstearing and transfer case on the f250. Its not bottom line but it is not synthetic either. Good to know. thanks for the help !

 

I ran Mobil 1 ATF in my 1998 C5 for 50,000 miles, then it started grinding going into 6th gear. I changed the clutch fluid, it didn't change. I changed the fluid to Amsoil ATD, it immediately stopped grinding and has been fine since.

1997-2000 C5's use paper blocker rings. Mobil 1 ATF is NOT compatable with these years.