This is a discussion on Fluid Question within the Manual Transmission forums, part of the Drivetrain category; I'm about to change out the clutch, master cyl, slave cyl, etc. What fluids would you guys recommend for the ...
11-25-2009, 10:36 AM #1
I'm about to change out the clutch, master cyl, slave cyl, etc. What fluids would you guys recommend for the transmission and the clutch? Is it worth spending the extra dough for Royal Purple, Dex VI Synthetic, or any other stuff, or should I just stick with Dex III for the trans and Dot 3 for the clutch?
11-29-2009, 11:49 AM #2
Found the answer to my own question on LS1Tech:
Full post here
Q: What transmission fluid do you recommend?
A: We use Mobil 1 ATF in all of our daily drivers. While Mobil 1 is what is desired some customers have trouble finding it in there locations. We also use GM Synchromesh. Royal Purple should not be used in a stock transmission as it has been known to cause premature blocker ring wear.
Q: What hydraulic fluid do you use?
A: The cheapest Dot 3 available. All DOT 3 fluid is good and as often as some people bleed there systems, O'Reillys or Auto Zone DOT 3 fluid will be just fine.
Q: What transmission fluid do you run in the high horsepower applications?
A: If you car makes over 650rwhp you should use 2 quarts of Mobil 1 ATF and 2 quarts of Synergyn Syngear II Manual Transmission Fluid. We have noticed a dramatic difference in the performance of our high horsepower units while mixing these 2 fluids. The Synergyn can be bought thru us or thru synergyn's website.
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