After My searches I discovered that Redline, Dino?, GM, Royal purple, Mobil 1 etc are some of the best rearend fluids, would you agree?
For a 2001 camaro SS, 6 spd, 4.10 gears. Whats the best Rearend fluid and additive and weight of the fluid? People say 75W 90 or 80W 140 so Im have no idea.
Car is My daily driver and once a week at the track so which brand of Gear lube and what weight would be the BEST??
I have always used what the General said use. Of course that may come from having been a GM Tech for over 15 years. I remember the SS using a "special" lube. The bottle had GM and Castrol writen all over it. Seems like it was SynTorq.
The best oil is clean oil. When you break in a new rearend you get a ton of metal shavings in the oil and that is what causes oil seal to leak. just keep it clean. And if you are worried about the rearend going out then geat a 12 bolt. put some miles on it and change the fluid twice over a 5,000 mile period.
I, too, am a preferred customer and use it in both my vehicles.
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2001 SS Convertible, M6, Artic White, Black Top, Cammed, Slammed, GMMG, LTs, Bolt-ons. No track times. Soon to have NX wet kit.
What is the additive that has to be added to the rear end when the oil is changed and where can you buy it..
you should be able to get posi additive at any auto parts store, or some oils come with it, I.E. royal purple, just read the lable or ask one of the numbnuts across the counter.
yeah i would use the GM additive... but wheni rebuilt my rear end in my truck i put a auburn limited slip and put the right amount of additive in with the right gear oil but still got chattered... asked around and a guy told me to buy fords additive he said somthing about it makes it work better... well anyways bought it just added like 1/3 of the bottle and chatter went away... so if you get some chatter from back there i would use that for sure!
Best rearend fluid for camaro SS? 
