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⚙️ Shift into the future with Royal Purple Synchromax – where power meets precision!
Royal Purple Synchromax Manual Transmission Fluid is a premium synthetic fluid designed to improve shifting smoothness, reduce gear noise, and lower operating temperatures. Compatible with manual transmissions, 4x4 transfer cases, and motorcycle gearboxes, it offers superior wear and corrosion protection without harming sensitive synchronizer metals. Trusted by professionals and enthusiasts alike, this 6-quart pack ensures your transmission performs like new mile after mile.
| ASIN | B007SPM0RG |
| Brand | Royal Purple |
| Brand Name | Royal Purple |
| Container Type | Bottle |
| Customer Reviews | 4.8 out of 5 stars 207 Reviews |
| Item Form | Liquid |
| Item Weight | 12 Pounds |
| Item weight | 12 Pounds |
| Liquid Volume | 6 Quarts |
| Liquid volume | 6 Quarts |
| Manufacturer | Royal Purple |
| Material | Synthetic |
| Model Number | 06512/01512 |
| Package information | Bottle |
| Part Number | ROYA01512-6PK |
| Recommended Uses For Product | Transmission Fluid |
| Recommended uses for product | Transmission Fluid |
| Specific Uses For Product | Manual Transmissions, 4x4 Transfer Cases, Motorcycle Gear Boxes |
| UPC | 641330065125 |
| Unit Count | 192 Milliliters |
M**A
Best in my opinion
What’s there to review, excellent stuff.
D**.
Great for 1988 F250 ZF5 transmission
I have a 88 F250 with the ZF5 (5 speed) transmission and a 460 (7.5l) V8. This stuff is awesome, I've always liked Royal Purple oil, and have used several other products with good result. I decided to change out my gear box oil/ATF and wanted something that offered a little bit better protection for a manual gearbox, namely better protection for the "yellow metals" (like brass and Copper) that are used in manual transmissions. I was looking just to replace my existing fluid with something a little better, what I was NOT expecting was a significant change in performance... my gearbox now shifts MUCH more smoothly than before, it used to be a little hard to get into 2nd (you normally start in 2nd on a ZF5 when not rowing), especially if the gearbox was really cold. This thing is now as easy to shift as I imagine it was when it was BRAND NEW! It took about 50-100 miles for it to have this effect, but let me tell, it's awesome (and was entirely unexpected)! If you have a Ford with a ZF5 or ZF6, this is the right choice for your gearbox (oh, and transfer case too!) and although it's a little pricey, it's worth every penny! The 6 quart pack was enough to do both my transmission and transfer case with about a third of a bottle (12oz) left.
M**H
Smooth performance
Use this in my Hummers transfer case (use their gear oil 75-90 in differentials). Increased gas mileage from first use and smoothed out the drive train. FYI - use full synthetic oil and transmission fluid as well. All synthetics increased gas mileage by almost 3mpg. Almost pays for itself….
N**H
Like magic
Been running this stuff in my manual transmission for over 2 years now. Figured I should leave a review. My transmission loves this stuff. Felt night and day smoother when I swapped it in. My transmission wasn’t even that old either.
J**S
Go to gear oil
For my ranger 5 speed and our 5/6speed Honda fits this gear oil works very well. Also used on a Honda metro moped. Been using Royal Purple since I found it at JCWhitney. Premium price for premium product.
Trustpilot
4 days ago
2 weeks ago