Smilyeez Listing for BG Syncro Shift II PN 792 with Pocket Screwdriver (3 Bottles) Synthetic Gear Lubricant - Fluid for Manual Transmissions and Trans-Axle

Got This for my 2021 Mustang GT and it solved lockout issues as well as got rid of a small thump that i used to get goin in lower gears

Bought my '21 Bronco used and did a precautionary flush of all the fluids after taking ownership. I used BG Syncro Shift II in the manual transmission and things have been smooth and silent. Very happy with the results and highly recommended.

I replaced the OEM oil in the 7 speed manual transmission on my Bronco. The OEM oil is like water. The BG Synchro Shift is a huge improvement. My Bronco is quieter and the shifts are much smoother.

Good fluid. People are always like “I noticed a difference in shifting” I noticed no difference. But it also hasn’t blown my transmission up and shifts smooth. So I mean it’s good fluid.

And it's good stuff. Shifts nice and smooth. BG is a decent enough brand and this is one of the more highly recommended brands for Fiesta ST manual trans fluid. I originally swapped in Motul DCTF fluid and while it was... fine, it never felt "great". This stuff is amazing.I would use it again in a heart beat.

This makes a ton of difference. You don’t have to trust me if you don’t want to, but I thought this wa silly to do in a new car. Yes, Mustang, Roush, supercharged. But I did. And it’s literally night and day. That’s all.

Did my Manual transmission refresh, 2017 Ford Mustang GT Prem.

This magic stuff quieted the Getrag MT-88 Transmission in my Ford Bronco!!!