I have a 2000 ss 4l60e and ive been using dex III and change the filter every 15k and last time i used royal purple tranny fluid but have been told its bad on the tranny? what kind should i be filling it up with? thanks! also the autozone says dex 4 or 6 something like that?

 

Royal Purple is fine. I don't recommend anyone spend that kinda coin for fluid though. House brand Dex3 or an equivilant is going to do you just fine.

g

 

thanks!

 

been running Mopar ATF+4 since my rebuild. knock on wood all is well

 

I used dex 6.

 

sencial mines a 2000 ss and i have all the same mods u do except stall and i do have ls6 intake and i made 335 rwhp and 337 rwt and i have 3.73s but i ran 13.5 lol but i beat an 06 goat and the new 2011 2ss pretty bad im confused i was hoping for low 12s any thoughts?
thanks again guys

 

I am curious as well. I was looking at some motor oil, and looked at the tranny fluids. I seen things like DEX III/M and i seen Dex 6.. But i would just stick with DEX III or as long as it says that its DEX III compatible.

 

Me, to Jake's Performance,
"What fluid do you recommend in your 4L80? Want to be sure to put the right stuff in it, or will any modern synthetic ATF be fine?"

Jake's Performance, to me (email)
"We use just plain ol trans fluid, what ever you want chris"

Their word is as good as it gets.

 

i used b&m trick shift in mine after rebuild got about 3000 miles on it and seems fine..and got 18 quarts for the price of 6... hahaha

 

OP are you stalled or stock converter ?
if stalled I would not run any brand synthetic ATF
just my .02 Johnny

 

I run the standard Valvoline Dex III in my Yank/FLT Level 3 setup. I made sure to ask Andy@FLT, and he said the same as above.. As long as it meets the Dex III standards, your good to go.

 

We suggest Dex III for the 4L60e. But have several guys running synthetic and have no problems. So as long as it is equal or better to Dex III you are good to go.

Chris