Thread: Rear diff Lube
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Old 11-07-2012, 01:06 AM   #33
Rot
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Have you looked into Amsoil! I'm currently using it in my 85 gsl-se and 91 turboII. Both my trannys also (turboII both) Awesome oil no complaints. check your year S4 or S5. Amsoil GL-4(thinner) GL-5 (thicker).
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