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

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

Product ID: 257794926

Details

Brand
Royal Purple
Item weight
1 Pounds
Liquid volume
1 Quarts
Material
Synthetic
Package information
Jug

⚙️5W viscosity for smooth shifting

🌡️Wide temperature range performance

🛡️Superior wear & corrosion protection

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Description

⚙️ Shift smarter, drive smoother — the secret sauce for your manual transmission.

COLD START CHAMPION - Low viscosity at cold temps means faster lubrication and improved fuel efficiency right from startup.
TRUSTED BY ENTHUSIASTS - Highly rated with 4.8 stars from over 1,600 reviews—join the community of performance-driven pros.
UNIVERSAL COMPATIBILITY - Perfectly blends with all friction materials and soft metals in manual transmissions and transfer cases.
ENGINEERED FOR LONGEVITY - Advanced synthetic formula delivers exceptional wear and corrosion resistance, extending transmission life.
EFFORTLESS SHIFTS EVERY TIME - Synchromax’s proprietary Synerlec additive ensures silky smooth gear changes across all temperatures.

Royal Purple Synchromax is a premium synthetic transmission fluid designed for manual gearboxes, transfer cases, and 2-cycle motorcycle gearboxes. Featuring proprietary Synerlec additive technology, it enhances shift quality, reduces gear noise, and provides superior wear, corrosion, and oxidation protection. Its 5W viscosity grade ensures optimal performance across a wide temperature range, making it a top choice for professionals seeking reliability and efficiency.

Specifications

ASIN	B001DKTG0G
Best Sellers Rank	#45,665 in Automotive ( See Top 100 in Automotive ) #550 in Automotive Oils
Brand	Royal Purple
Brand Name	Royal Purple
Container Type	Jug
Customer Reviews	4.8 out of 5 stars 1,623 Reviews
Global Trade Identification Number	00641330015120
Included Components	Auto part, Automotive Accessories, Replacement and Performance parts
Item Form	Oil
Item Type Name	Synchromax Qt. Transfluid
Item Weight	454 g
Item weight	454 g
Liquid Volume	1 Quarts
Liquid volume	1 Quarts
Manufacturer	Royal Purple
Material	Synthetic
Model Number	ROY01512
Number of Items	1
Number of Packs	1
Package information	Jug
Part Number	01512
Recommended Uses For Product	Corrosion Inhibitor
Recommended uses for product	Corrosion Inhibitor
SAE J300 Viscosity Grade	5W
Specific Uses For Product	Manual transmissions, transfer cases, 2-cycle motorcycle gear boxes, wide temperature range operation, friction material compatibility, corrosion and oxidation protection
UPC	641330015120
Unit Count	32 Milliliters
Viscosity	5w
Warranty Description	Manufacturer Warranty

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$82.41

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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