I changed my Fluid with Lifeguard 8 at 50K miles following the ZF video using my Foxwell to monitor temps. Installed the ZF Pan Kit with filter.
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The pan has a standoff pipe which holds the fluid at a specific level .
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Hardest part is filling the pan once the temps reach the lower range temp.
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Many post on this topic. ZF says change the pan and fluid at your mileage.
https://aftermarket.zf.com/go/en/aft...on-oil-change/