Anyone running Royal Purple Synchromax?
Anyone running Royal Purple Synchromax?
In there manual tranny's?

Synchromax is recommended for manual transmissions that specify an automatic transmission fluid or motor oil. It is also ideal for 4x4 transfer cases and / or 2-cycle and 4-cycle motorcycle gear boxes.
Synchromax is formulated with Royal Purple's synthetic, proprietary Synerlec additive technology, which offers improved shift quality over a wide temperature range and reduced gear noise.
Synchromax is fully compatible with all types of friction materials and offers excellent corrosion and oxidation protection without affecting the soft metals commonly found in manual transmission synchronizers.
Try Royal Purple today and Feel the Difference!

Synchromax is recommended for manual transmissions that specify an automatic transmission fluid or motor oil. It is also ideal for 4x4 transfer cases and / or 2-cycle and 4-cycle motorcycle gear boxes.
Synchromax is formulated with Royal Purple's synthetic, proprietary Synerlec additive technology, which offers improved shift quality over a wide temperature range and reduced gear noise.
Synchromax is fully compatible with all types of friction materials and offers excellent corrosion and oxidation protection without affecting the soft metals commonly found in manual transmission synchronizers.
Try Royal Purple today and Feel the Difference!
Yes I have it it mine sold and installed by the dealer.It has made it a much smoother shifting trans when cold and REALLY slick when the fluid warms up to operating temp.
Tell your dealer to find a new line of work because he knows nothing of the one he is in.
Tell your dealer to find a new line of work because he knows nothing of the one he is in.
Last edited by silversccoupe; Oct 4, 2007 at 03:04 PM. Reason: Automerged Doublepost
i have it in the tranny of my 81 BMW 320i (stock tranny, 177,000 miles, and as near as i can tell, the oil in it was at LEAST ten years old when i changed it).
it really helps it shift when it is cold out, and it runs a lot quieter and cooler. it's good stuff, but i've heard horror stories of people using non-atf in these cars...
it really helps it shift when it is cold out, and it runs a lot quieter and cooler. it's good stuff, but i've heard horror stories of people using non-atf in these cars...
on the redline its right behind the i guess engine cradle on the drivers side...take off the wheel and you need a 8mm L wrench put a little cheater bar on it and give it hell it will feel like you broke something but relax...the fill hole is the top one fill it til it leaks out
I'm running the Royal Purple 75W-90 Max Gear Oil as well. It's real nice and the only comparable tranny fluid to the Saturn Manual Transmission fluid our cars run. It's actually a lot better than it too!
Read and Heed, the Syncromax is not the same stuff and does not meet the standards our cars require!
Read and Heed, the Syncromax is not the same stuff and does not meet the standards our cars require!
I'm running the Royal Purple 75W-90 Max Gear Oil as well. It's real nice and the only comparable tranny fluid to the Saturn Manual Transmission fluid our cars run. It's actually a lot better than it too!
Read and Heed, the Syncromax is not the same stuff and does not meet the standards our cars require!
Read and Heed, the Syncromax is not the same stuff and does not meet the standards our cars require!


