Will thia work for my 99 s10 manual transmission?

I have used it in my 98 S10 with the nv1500 5 speed. Worked fine .

I will be replacing the Pensoil Syncromesh in my Jeep Wrangler with the NV3550. Will this be safe to use?

I don't have a Jeep, but the Royal Purple Synchromax fluid is specifically designed to replace all Synchromesh applications so as long as your Jeep's NV3550 calls for Synchromesh (which I think it does) then you should be fine. Synchromax would be a good upgrade.

Anybody try this in sonic with a 1.8 5 speed? Thanks

I'm sure the trans in a sonic is Korean made and I use it in my Honda civic si and it made my shifts smooth and precise

Will this work in a 2014 mustang manual?

There is a tool on the Royal Purple website: you enter your make and model (and year) and it shows you all the recommended products for your car (engine, transmission, transfer case, differentials, etc.)

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⚙️ Shift into the future with Royal Purple Synchromax – where precision meets performance!

BUILT FOR LONGEVITY - Enhanced wear protection extends transmission life under diverse driving conditions.
PROUDLY MADE IN THE USA - Crafted with precision and quality assurance for the discerning professional.
UNIVERSAL COMPATIBILITY - Works flawlessly with all friction materials and soft metals in manual transmissions.
SMOOTH SHIFTS EVERY TIME - Advanced Synerlec additive tech ensures seamless gear transitions and reduced noise.
LIGHT VISCOSITY POWERHOUSE - Ideal for manual transmissions, transfer cases, and 2-cycle motorcycle gearboxes requiring light oils.

Royal Purple Synchromax QT Transfluid is a premium synthetic transmission fluid designed for manual transmissions, transfer cases, and 2-cycle motorcycle gearboxes requiring light-viscosity oils. Featuring proprietary Synerlec additive technology, it delivers superior shift quality, reduced gear noise, and excellent protection against wear, corrosion, and oxidation—all while being fully compatible with various friction materials and soft metals. Made in the USA, this 1-quart fluid is engineered for professionals who demand reliability and performance.

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Manufacturer	Royal Purple
Brand	Royal Purple
Model	1512
Product Dimensions	10.16 x 5.08 x 2.54 cm; 453.59 g
Item model number	ROY01512
Manufacturer part number	1512
OEM Part Number	01512
Item Weight	454 g
Viscosity	1

Royal Purple Royal Purple-ROY01512 SYNCHROMAX QT. TRANSFLUID, 1 Quart (32 Ounces)

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