Select 1987-2026 Vehicles Royal Purple Synchromax Synthetic Manual Transmission Fluid - 1 Quart

Royal Purple Synchromax is a synthetic manual transmission fluid built for units that call for an automatic transmission fluid or other light-viscosity oil instead of standard gear oil. Mustang or F-150, whether this is the right fluid for your transmission comes down to what your specific unit specs, not the year or model. It's also suited to transfer cases and 2-cycle motorcycle gearboxes that call for the same kind of light-viscosity lubricant, per Royal Purple.

Why Upgrade to Synchromax

Per Royal Purple, here's what Synchromax is built for:

• If your manual transmission's factory fluid spec calls for an ATF or another light-viscosity oil rather than a heavier gear oil, Synchromax is formulated to fill that spot.
• Same applies to transfer cases that spec a light-viscosity lubricant.
• It's also suited to 2-cycle motorcycle gearboxes that call for a light-viscosity lubricant, if that's another machine you're maintaining.

Fitment Notes

This fluid isn't mapped to specific Mustang or F-150 applications in our fitment data. It's recommended for manual transmissions, transfer cases, or 2-cycle motorcycle gearboxes that specify an automatic transmission fluid or other light-viscosity lubricant, per Royal Purple. Our data doesn't list vehicle-specific exclusions for this product, so check your transmission's factory fluid spec before you buy.

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Install and Honest Talk

This isn't a bolt-on part, it's a fluid choice, and the fit that matters is between the fluid and what your transmission's factory spec calls for. Royal Purple recommends it for units that spec an ATF or other light-viscosity oil, not for a transmission built around standard gear oil, so check your spec before you pour it in.

Specs

• Brand: Royal Purple
• Quantity: 1 quart
• Recommended for: Manual transmissions, transfer cases, and 2-cycle motorcycle gearboxes that specify an automatic transmission fluid or other light-viscosity lubricant

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Exchanges
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.

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We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund too.