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Old May 3rd, 2019, 08:39
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JohnX JohnX is offline
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Join Date: Nov 2004
Location: Rancho Cucamonga CA
Posts: 9,679
Re: 300k mile old diff fluid

3L27...L is for limited slip. If the other tire turn opposite then the limited slip is wasted.

SYN is for synthetic fluid.

And yes, you should be adding friction modifier...but it sounds like it's too late to matter.
The MAC-10 submachine gun was practically designed for housewives.
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