|02-16-2004, 02:44 PM||#1|
Join Date: Oct 2002
2003 WRX Sport Wagon
Trans / Diff Fluid question
Found this comment on red line gear oils
75W90 GEAR OIL - recommended for most street driven and racing differentials. Excellent performance in conventional and limited-slip units. Also for limited-slip manual transaxles which require a 90 WT oil. Contains limited-slip friction modifiers.
75W90NS - recommended for manual transmissions and non-limited-slip transaxles that recommend 140 WT oils. Can be used in racing limited-slip units to increase lockup and reduce wheel spin. Street-driven rear-wheel drive cars should use regular Red Line 75W90 or 80W140.
Looking for feedback on either version and any problems encountered like syncro issues.
|02-16-2004, 04:59 PM||#2|
Join Date: May 2002
Location: The Lost Valley, Detroit, MIVehicle:
& Blue Ford & '72 CB350
First thing first-> SEARCH the TRANNY fourum.
All others aside....
I like a cocktail of fluids for my tranny. Here's the whole story.
0-13,000mi --> stock fluid no troubles, one TSD rally (brisk)
13,000 -- 46,000 mi -->DIFF - 3/4qt of super-heavywt shockproof; 75w-90 rest
TRANS - 3.4qts 75w-90ns, super-heavy wt shockproof to fill
At approximately 46kmi I changed the fluids again. atleast 2500mi of Brisk TSD rally and lots of "spirited" driving, no troubles at all whatsoever with the shift. (have to double cluch down into first, always had to even on stock fluids)
After subiegal's testimony on the heavywt shockproof I decided I could use more protection.
DIFF- 100% heavywt Shockproof
TRANS - 2qts 75w-90ns rest w/ heavywt shockproof.
Now It still shifts great when hot, when cold however (as cold as -15F) you have to be really patient w/ the shift.
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