Redline Fluids
Thread Starter
Burning Brakes
Joined: May 2008
Posts: 1,008
Likes: 5
From: Greensburg PA
Redline Fluids
Rearend's out of my 88 Auto, and I need some differential fluid for my Dana 44. I've heard great things about redline, but i have a few questions.
1. What weight should i run, 75w90 or 75w140?
2. SHould i use the regular synethetic or the "heavyweight shockproof"
3. Do i still add two bottles of GM Limited slip additive to the fluid? Are you guys picking up this LSD additive from the dealer?
1. What weight should i run, 75w90 or 75w140?
2. SHould i use the regular synethetic or the "heavyweight shockproof"
3. Do i still add two bottles of GM Limited slip additive to the fluid? Are you guys picking up this LSD additive from the dealer?
Race Director
Joined: Apr 2000
Posts: 15,344
Likes: 4,009
From: Texas
Rearend's out of my 88 Auto, and I need some differential fluid for my Dana 44. I've heard great things about redline, but i have a few questions.
1. What weight should i run, 75w90 or 75w140?
2. SHould i use the regular synethetic or the "heavyweight shockproof"
3. Do i still add two bottles of GM Limited slip additive to the fluid? Are you guys picking up this LSD additive from the dealer?
1. What weight should i run, 75w90 or 75w140?
2. SHould i use the regular synethetic or the "heavyweight shockproof"
3. Do i still add two bottles of GM Limited slip additive to the fluid? Are you guys picking up this LSD additive from the dealer?
Use the regular
You do not need LSD additive, it's part of the Redline formulation
I've run the above for years, both on the street and on the track (road courses, so LOTS of left and right turning, high speeds, and corresponding heat) without issue.
Safety Car
Joined: Sep 2010
Posts: 3,752
Likes: 190
From: Indiana PA
I got regular 75W90 Redline in my D44. No complaints works fine, NO LSD additive.
Also, got their Lightweight Shockproof Gear Oil in my ZF6, no complaints, works great, and I know my ZF6 is well protected.
The shockproof, gives more cushion to the gears so it maybe beneficial to run it in high load applications like all of other posters here so far. They all race in some capacity. Me too, just not as often as I would like.
Also, got their Lightweight Shockproof Gear Oil in my ZF6, no complaints, works great, and I know my ZF6 is well protected.
The shockproof, gives more cushion to the gears so it maybe beneficial to run it in high load applications like all of other posters here so far. They all race in some capacity. Me too, just not as often as I would like.
Race Director
Joined: Apr 2000
Posts: 15,344
Likes: 4,009
From: Texas
I got regular 75W90 Redline in my D44. No complaints works fine, NO LSD additive.
Also, got their Lightweight Shockproof Gear Oil in my ZF6, no complaints, works great, and I know my ZF6 is well protected.
The shockproof, gives more cushion to the gears so it maybe beneficial to run it in high load applications like all of other posters here so far. They all race in some capacity. Me too, just not as often as I would like.
Also, got their Lightweight Shockproof Gear Oil in my ZF6, no complaints, works great, and I know my ZF6 is well protected.
The shockproof, gives more cushion to the gears so it maybe beneficial to run it in high load applications like all of other posters here so far. They all race in some capacity. Me too, just not as often as I would like.
Instructor
Joined: Mar 2010
Posts: 110
Likes: 8
From: Twin Cities MN
I got regular 75W90 Redline in my D44. No complaints works fine, NO LSD additive.
Also, got their Lightweight Shockproof Gear Oil in my ZF6, no complaints, works great, and I know my ZF6 is well protected.
The shockproof, gives more cushion to the gears so it maybe beneficial to run it in high load applications like all of other posters here so far. They all race in some capacity. Me too, just not as often as I would like.
Also, got their Lightweight Shockproof Gear Oil in my ZF6, no complaints, works great, and I know my ZF6 is well protected.
The shockproof, gives more cushion to the gears so it maybe beneficial to run it in high load applications like all of other posters here so far. They all race in some capacity. Me too, just not as often as I would like.
I'm running MTL in the ZF6. No complaints so far. Have either of you used it, and if so what made you switch to the shockproof?
As for the original question, I also run Redline in the rear with no LSD additive and have nothing but good things to say about it.
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Race Director
Joined: Apr 2000
Posts: 15,344
Likes: 4,009
From: Texas
In addition, given the amount and speed of shifting that occurs on a road course, I like the cushioning effect that the shockproof offers the gears.
Safety Car
Joined: Sep 2010
Posts: 3,752
Likes: 190
From: Indiana PA
I had it recommenced to me so I am using it. WAY better than stock fluid.
FYI, the fluid is blue so...blueberry milkshake.
We call it Smurf blood 
