Quote:
Originally Posted by pauly1119
I used Royal Purple Synchromax, I didn’t use the drain I used the temp sensor as the drain. Pretty easy job probably 40 minutes in all. A little high temp thread seal back on the temp sensor. I definitely feel like the Royal Purple improved the smoothness in shifting especially when it’s cold.
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I also put RP Synchromax in mine at the 6k mark. Made a noticeable difference. With the stock fluid, when the temp outside was below 50, the first to second gear shift would be notchy and clunky. Since switching to synchromax, that notchy-ness is gone and it shifts noticeably smoother.
I have just over 22k now on my ZL1 and it still shifts great.