changing fluids

Discuss the RB20, RB25 and RB26 series engines.
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Chaos the Xile
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I need to know how much transmission Fluid I need to buy, I am about to change the fluids. Also I want to add some Shockproof in with the transmission Fluid what amount sould I buy of that too? ITs not in the FSM on transmission fluid changes so I thought I'd ask here.


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Shocker
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Car: 89 240sxHB rb26/30

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about 4 quarts in the rb25 transmission

madcowvert
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4qt's should be fine i think it's like 3.8 exactly.


tlkq
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how bout rb20 transmission?

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Chaos the Xile
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alright, and can i add like a quart of that shockproof on top of the 4 quarts?

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Shocker
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Chaos the Xile wrote:alright, and can i add like a quart of that shockproof on top of the 4 quarts?
no it will most likely leak out of the over flow tube. drain a quart, then add.

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Carl H
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why are you mixing oils?

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StricNyne
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i thought u put in 4qt of redline shockproof, well its wut i was gunna do

RB20DETodd
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mt-90 is overated light weight shockproof is winnar!

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Shocker
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Carl H wrote:why are you mixing oils?
you can mix Redline Fluids between shockproof and their regular MT series gear oil.

madcowvert
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yhea but i thought you don't want to mix oils because. diffrent weight's dont really mix. dosen't the lighter oil always end-up on top.


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Shocker
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madcowvert wrote:yhea but i thought you don't want to mix oils because. diffrent weight's dont really mix. dosen't the lighter oil always end-up on top.
dont think so, When I drained my transmission after it had sat for about 2 months not moving. My mixed transmission fluid came out purple. Not red and blue which were the original colors. If it was going to seperate.. it would have during that time.

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Chaos the Xile
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Shocker wrote:
you can mix Redline Fluids between shockproof and their regular MT series gear oil.
The MT-90 and Shockproof are designed to be mixed if they have to. I talked to my buddy at a local shop who runs a D1 Drift car, he siad that you can mix them, do like shocker said drain a qt or leave it one qt shy and add the shockproof, stuff is suppose to work WONDERS!

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Shocker
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Car: 89 240sxHB rb26/30

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Chaos the Xile wrote:
The MT-90 and Shockproof are designed to be mixed if they have to. I talked to my buddy at a local shop who runs a D1 Drift car, he siad that you can mix them, do like shocker said drain a qt or leave it one qt shy and add the shockproof, stuff is suppose to work WONDERS!
thank you.

and yes they do, makes a transmission feel so fresh.


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