Friction Modifiers
Enhance your engine’s and drivetrain’s lifespan and performance with advanced friction modifiers from Phantom Motorsports. Friction modifiers are specialty additives designed to reduce internal friction between moving parts in engines, transmissions, and differentials, resulting in smoother operation, reduced wear, and even improved fuel economy. Whether you're fine-tuning a high-performance build, quieting limited-slip chatter, or simply looking to extend the life of your everyday vehicle, our selection offers proven solutions for every application.
At Phantom Motorsports, we source friction modifiers from trusted brands renowned for their effectiveness with modern and classic vehicles alike. Easy to use and formulated for perfect compatibility with lubricants and hardware, our additives are a top choice for differential rebuilds, transmission services, and specialty engine oil needs. Experience quieter operation, longer component life, and superior performance with the right friction modifier for your ride.
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Klotz Synthetic Lubricants Limited Slip Booster Case 20 X 4 Ounce Ke-910
KLOTZ SYNTHETIC LUBRICANTS
MSRP:Now: $219.00Was:Friction Modifier - Limited Slip Differential - 4 oz Bottle - Set of 20MSRP:Now: $219.00Was: -
Torco Gm Limited Slip Additive Type G Case/12-4Oz Afm0010J
TORCO
MSRP:Now: $128.29Was:Friction Modifier Additive - Type G - Limited Slip Differential GM - 4 oz Bottle - Set of 12MSRP:Now: $128.29Was: -
Ford Diff Frict Mod Case 12 Case Of 12 M-19546-A12
FORD
MSRP:Now: $107.30Was:Friction Modifier Additive - Clutch Type Limited Slip Differential - 3.80 oz Bottle - Set of 12MSRP:Now: $107.30Was: -
Torco Ford Limited Slip Additi Type F 4Oz Bottle Afm0050Je
TORCO
MSRP:Now: $17.88Was:Friction Modifier Additive - Type F - Limited Slip Differential Ford - 4 oz Bottle - EachMSRP:Now: $17.88Was: -
Torco Gm Limited Slip Additive Type G 4Oz Bottle Afm0010Je
TORCO
MSRP:Now: $17.88Was:Friction Modifier Additive - Type G - Limited Slip Differential GM - 4 oz Bottle - EachMSRP:Now: $17.88Was: -
Ford Differential Friction Modifier 1 Bottle 3.8Oz Cm-19546-A1
FORD
MSRP:Now: $17.82Was:Friction Modifier Additive - Clutch Type Limited Slip Differential - 3.80 oz Bottle - EachMSRP:Now: $17.82Was:
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FAQ
What is a friction modifier?
A friction modifier is a chemical additive blended into oils or fluids to decrease friction between metal surfaces, reducing wear and improving the smoothness of gear and clutch engagement.
When should I use a friction modifier?
Use friction modifiers in limited-slip differentials (to eliminate clutch chatter), select automatic/manual transmissions, certain engine oils, or wherever your manufacturer specifies. Always consult your owner’s manual or vehicle service guide.
Can friction modifiers improve fuel economy?
Yes, by reducing internal friction, these additives can help improve fuel efficiency—particularly in differentials, transmissions, and high-mileage or performance engines.
Are friction modifiers safe for all vehicles?
Most are formulated to be compatible with modern and classic vehicles, but always check your vehicle’s requirements and the product label before adding them to your fluids.
Can I use friction modifiers with synthetic and conventional oils?
Absolutely! Most friction modifiers are designed to work in both synthetic and conventional lubricants—just be sure to use the recommended amount.
Will a friction modifier eliminate limited-slip differential noise?
Yes, these additives are commonly used to quiet clutch chatter and noise in limited-slip differentials by allowing the clutches to slip as intended.
How do I add a friction modifier to my system?
Pour the additive directly into the relevant fluid reservoir (engine, transmission, or differential) as instructed, typically during a fluid change or service interval.
What if my product arrives leaking or damaged?
Customer satisfaction is our priority. If your friction modifier arrives leaking or damaged, contact us within 7 days for a quick replacement, exchange, or refund.