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Discussion Starter · #1 ·
What is the best synthetic lube for the differential on the nine. I have been using standard Suzuki rear end lube but think a synthetic would work better with the heat generated by the power the engine sends it. Plus the fact that synthetics have super lubricant in them that can't hurt the process. I am definitely interested what everyone is using and how you think it is doing. :dontknow:

You mean this question has been answered? :joke:

I use Mobil 1 which you should be able to get at any parts store

Mobil 1 Synthetic Gear Lube
I bought PJ1 straight 90 wt, since that is all that was spec'd. I had the 75w90 on my shelf. Eh..........

It's hard to find straight 90 weight oil!
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