Posi Additive(62)
Uses item details. Price when purchased online
Yukon Friction Modifier Additive for Limited Slip/Posi - 12 Pack $149.27
Sponsored
$14927
current price $149.27Yukon Friction Modifier Additive for Limited Slip/Posi - 12 Pack
Yukon Friction Modifier Additive for Limited Slip/Posi - 4 Ounce Bottle $9.89
Sponsored
$989
current price $9.89Yukon Friction Modifier Additive for Limited Slip/Posi - 4 Ounce Bottle
294.8 out of 5 Stars. 29 reviews
STP 3-Pack Gasoline Engine & Fuel Additives - Fuel System Cleaner, Gas Treatment, & Octane Booster for Better Engine Performance From $16.97
Sponsored
From$1697
STP 3-Pack Gasoline Engine & Fuel Additives - Fuel System Cleaner, Gas Treatment, & Octane Booster for Better Engine Performance
3014.6 out of 5 Stars. 301 reviews
Save with
Rollback Dura Lube Catalytic & Exhaust System Treatment Emissions Additive Automotive Converter Cleaner 16oz From $16.98
Sponsored
From$1698
Dura Lube Catalytic & Exhaust System Treatment Emissions Additive Automotive Converter Cleaner 16oz
7084.2 out of 5 Stars. 708 reviews
Save with
Yukon Friction Modifier Additive for Limited Slip/Posi - 4 Ounce Bottle $9.89
$989
current price $9.89Yukon Friction Modifier Additive for Limited Slip/Posi - 4 Ounce Bottle
294.8 out of 5 Stars. 29 reviews
Yukon Friction Modifier Additive for Limited Slip/Posi - 12 Pack $149.27
$14927
current price $149.27Yukon Friction Modifier Additive for Limited Slip/Posi - 12 Pack
CRC Industries Trans-X Posi Trac Limited Slip Gear Oil Additive 1X7OZ $16.49
$1649
current price $16.49CRC Industries Trans-X Posi Trac Limited Slip Gear Oil Additive 1X7OZ
25 out of 5 Stars. 2 reviews
Trans-X Posi Trac Limited Slip Gear Oil Additive -Case of 12 - 7 Fl Oz Each $159.99
$15999
current price $159.99Trans-X Posi Trac Limited Slip Gear Oil Additive -Case of 12 - 7 Fl Oz Each
K&W Products Posi-Trac Gear Oil Additive 7oz - Pack of 6 $72.99
$7299
current price $72.99K&W Products Posi-Trac Gear Oil Additive 7oz - Pack of 6
Limited Slip Additive $18.99
$1899
current price $18.99Limited Slip Additive
15 out of 5 Stars. 1 reviews
Archoil AR6300 Winter Diesel Treatment - Treats 550 Gallons - (Two Pack) - Additive for All Diesel Vehicles Includes Anti-Gel Protection $79.90
Sponsored
$7990
current price $79.90Archoil AR6300 Winter Diesel Treatment - Treats 550 Gallons - (Two Pack) - Additive for All Diesel Vehicles Includes Anti-Gel Protection
25 out of 5 Stars. 2 reviews
Archoil AR6300 Winter Diesel Treatment - Treats 275 Gallons - Includes Anti-Gel Protection - Additive for All Diesel Vehicles $44.95
Sponsored
$4495
current price $44.95Archoil AR6300 Winter Diesel Treatment - Treats 275 Gallons - Includes Anti-Gel Protection - Additive for All Diesel Vehicles
34.3 out of 5 Stars. 3 reviews
Red Line Limited-Slip Friction Modifier & Break-In Additive 4 oz - 80301 $12.49
$1249
current price $12.49Red Line Limited-Slip Friction Modifier & Break-In Additive 4 oz - 80301
15 out of 5 Stars. 1 reviews
Liqui Moly Pro-Line Catalytic System Cleaner Fuel Additive Reduces Emissions Restores Catalytic Converter Performance 500ml for Gasoline Engines $259.00
$25900
current price $259.00Liqui Moly Pro-Line Catalytic System Cleaner Fuel Additive Reduces Emissions Restores Catalytic Converter Performance 500ml for Gasoline Engines
LUBEGARD Limited Slip Supplement $11.32
$1132
current price $11.32LUBEGARD Limited Slip Supplement
25 out of 5 Stars. 2 reviews
Save with
100+ bought since yesterday Lucas Oil 10020 Fuel Treatment 5.25 Ounce From $5.78
5 options
Available in additional 5 optionsFrom$578
Lucas Oil 10020 Fuel Treatment 5.25 Ounce
15244.8 out of 5 Stars. 1524 reviews
Save with
STP Synthetic Oil Treatment Engine Oil Additive, 15 fl oz From $8.92
4 options
Available in additional 4 optionsFrom$892
STP Synthetic Oil Treatment Engine Oil Additive, 15 fl oz
1524.8 out of 5 Stars. 152 reviews
Save with
STP High Viscosity Oil Treatment (15 fluid ounces) From $4.98
5 options
Available in additional 5 optionsFrom$498
STP High Viscosity Oil Treatment (15 fluid ounces)
2874.8 out of 5 Stars. 287 reviews
Save with
Clearance Virelaxpo Catalytic Converter Cleaner - Automotive Fuel System Additive, Removes Carbon Deposits, 120ml Bottle for Improved Performance and Emissions Reduction From $9.26
From$926
Virelaxpo Catalytic Converter Cleaner - Automotive Fuel System Additive, Removes Carbon Deposits, 120ml Bottle for Improved Performance and Emissions Reduction
Mopar 04318060AD Limited Slip Additive Friction Modifier $19.95
$1995
current price $19.95Mopar 04318060AD Limited Slip Additive Friction Modifier
Rislone Hy-per Fuel 4700 Complete Fuel System Cleaner Gas Automotive Additive 16.9 oz From $11.28
Sponsored
From$1128
Rislone Hy-per Fuel 4700 Complete Fuel System Cleaner Gas Automotive Additive 16.9 oz
5344.7 out of 5 Stars. 534 reviews
Save with
Bar's Leaks 1400 High Mileage Transmission Repair, Automotive Additive, 16 oz From $11.98
Sponsored
From$1198
Bar's Leaks 1400 High Mileage Transmission Repair, Automotive Additive, 16 oz
2764.6 out of 5 Stars. 276 reviews
Save with
STP Ultra Anti-Friction Engine Oil Additive Treatment for Improved Performance, 15 oz $8.92 59.5 ¢/oz
$892
current price $8.9259.5 ¢/oz
STP Ultra Anti-Friction Engine Oil Additive Treatment for Improved Performance, 15 oz
734.8 out of 5 Stars. 73 reviews
Save with
Opti-Lube XPD Diesel Fuel Improver Automotive Additive, Diesel Fuel Additive $81.00
$8100
current price $81.00Opti-Lube XPD Diesel Fuel Improver Automotive Additive, Diesel Fuel Additive
424.8 out of 5 Stars. 42 reviews
Clearance Complete System Cleaner, 150ml PEA-Powered Fuel Additive for Carbon Deposit Removal, Injector and Catalytic Converter Cleaning, Improves Engine Performance and Fuel Economy Was $10.81
Complete System Cleaner, 150ml PEA-Powered Fuel Additive for Carbon Deposit Removal, Injector and Catalytic Converter Cleaning, Improves Engine Performance and Fuel Economy
AGS Friction Modifier Engine Oil Additive 16 fl oz $29.99
$2999
current price $29.99AGS Friction Modifier Engine Oil Additive 16 fl oz
225 out of 5 Stars. 22 reviews
Spectronics EZ-4ECS - Additive For Polyolester (Poe) Oil $33.34
$3334
current price $33.34Spectronics EZ-4ECS - Additive For Polyolester (Poe) Oil
Polaris 2881416 Genuine OEM 12oz Bottle Advanced Fuel Treatment Stabilizer 2-4 Cycle $13.95
$1395
current price $13.95Polaris 2881416 Genuine OEM 12oz Bottle Advanced Fuel Treatment Stabilizer 2-4 Cycle
PRI Fuel Stabilizer For Gasoline 32oz Power Output Reduces HC/NOx Emissions $42.00
$4200
current price $42.00PRI Fuel Stabilizer For Gasoline 32oz Power Output Reduces HC/NOx Emissions
4 Fl. Oz. Si-2 Fuel System Cleaner $20.32
$2032
current price $20.324 Fl. Oz. Si-2 Fuel System Cleaner
STP High Mileage Oil Treatment + Stop Leak Engine Oil Additive, 15 fl oz From $6.98
Sponsored
From$698
STP High Mileage Oil Treatment + Stop Leak Engine Oil Additive, 15 fl oz
4044.6 out of 5 Stars. 404 reviews
Save with
Bar's Leaks 1199 Radiator Stop Leak Automotive Additive, Vehicle Type: Universal, 11oz From $4.98
Sponsored
From$498
Bar's Leaks 1199 Radiator Stop Leak Automotive Additive, Vehicle Type: Universal, 11oz
4024.5 out of 5 Stars. 402 reviews
Save with
Red Line 60103 SI-1 Complete Fuel System Cleaner, Cleans and Prevents Corrosion in Fuel Systems, Cleans Injectors, Carburetors, Valve and Combustion Chamber Deposits - 15 Ounce $15.99 $15.99/count
$1599
current price $15.99$15.99/count
Red Line 60103 SI-1 Complete Fuel System Cleaner, Cleans and Prevents Corrosion in Fuel Systems, Cleans Injectors, Carburetors, Valve and Combustion Chamber Deposits - 15 Ounce
1274.5 out of 5 Stars. 127 reviews
Save with
HKS 200 ml Add-II Engine Oil Additive $43.56
$4356
current price $43.56HKS 200 ml Add-II Engine Oil Additive
PRI CP122 PRI-G Gas Treatment - 32 oz. $37.57
$3757
current price $37.57PRI CP122 PRI-G Gas Treatment - 32 oz.
164.9 out of 5 Stars. 16 reviews
RVS Technology P2 Power Steering Treatment. For Power Steering Units with an Oil Capacity up to 2 quarts. Restores Metal Surfaces in Your Power Steering Units, Safe for All Power Steering Pumps. $29.95
$2995
current price $29.95RVS Technology P2 Power Steering Treatment. For Power Steering Units with an Oil Capacity up to 2 quarts. Restores Metal Surfaces in Your Power Steering Units, Safe for All Power Steering Pumps.
15 out of 5 Stars. 1 reviews
Save with
STP Complete Fuel System Cleaner - 5.25 FL OZ Bottle From $6.64
5 options
Available in additional 5 optionsFrom$664
STP Complete Fuel System Cleaner - 5.25 FL OZ Bottle
2624.7 out of 5 Stars. 262 reviews
Save with
VP Racing Octanium 2855 Octane Improver Automotive Additive 32 Ounce $26.38 82.4 ¢/fl oz
$2638
current price $26.3882.4 ¢/fl oz
VP Racing Octanium 2855 Octane Improver Automotive Additive 32 Ounce
264.1 out of 5 Stars. 26 reviews
Save with
Opti-2 2 Cycle Oil with Fuel Stabilizer 3.2 Oz., pack of 28 $87.55
$8755
current price $87.55Opti-2 2 Cycle Oil with Fuel Stabilizer 3.2 Oz., pack of 28
Best seller STP Super Concentrated Fuel Injector Cleaner - 5.25 FL OZ (2 Count) From $6.37
6 options
Available in additional 6 optionsFrom$637
STP Super Concentrated Fuel Injector Cleaner - 5.25 FL OZ (2 Count)
4704.7 out of 5 Stars. 470 reviews
Save with
STA-BIL Small Engine Pro. Multi-system Fuel Additive for Small Engines, 16 fl. oz. (22305) $6.84 42.8 ¢/fl oz
$684
current price $6.8442.8 ¢/fl oz
STA-BIL Small Engine Pro. Multi-system Fuel Additive for Small Engines, 16 fl. oz. (22305)
1014.6 out of 5 Stars. 101 reviews
Save with
STP Super Concentrated Gas Treatment | 5.25 fl oz Bottles | 2-Pack $22.99
$2299
current price $22.99STP Super Concentrated Gas Treatment | 5.25 fl oz Bottles | 2-Pack
U Pol Products SYSTEM 20 UP2001 Fisheye Eliminator Anti-Silicone Additive, 250 mL Bottle, Clear, Liquid $41.32
$4132
current price $41.32U Pol Products SYSTEM 20 UP2001 Fisheye Eliminator Anti-Silicone Additive, 250 mL Bottle, Clear, Liquid
Polaris OEM Carbon Clean Fuel Treatment, 2- & 4-Cycle Engines 12oz., 2881413 $15.99 Was $22.94
Now$1599
current price Now $15.99, Was $22.94$22.94
Polaris OEM Carbon Clean Fuel Treatment, 2- & 4-Cycle Engines 12oz., 2881413
15 out of 5 Stars. 1 reviews
PRI-G Fuel Stabilizer for Gasoline 32 oz Complete Fuel Treatment | Increases Engine Power, Extends Fuel Life & Reduces Emissions | Improves MPG & Prevents Engine Deposits $37.57
$3757
current price $37.57PRI-G Fuel Stabilizer for Gasoline 32 oz Complete Fuel Treatment | Increases Engine Power, Extends Fuel Life & Reduces Emissions | Improves MPG & Prevents Engine Deposits
125 out of 5 Stars. 12 reviews
Colorful High-Efficiency Pea Fuel System Cleaner, Gasoline Additive For Injector And Catalytic Converter, 150Ml And 300Ml Options
Colorful High-Efficiency Pea Fuel System Cleaner, Gasoline Additive For Injector And Catalytic Converter, 150Ml And 300Ml Options
Opti-2 2 Cycle Oil with Fuel Stabilizer 3.2 Oz., pack of 28 $109.44
$10944
current price $109.44Opti-2 2 Cycle Oil with Fuel Stabilizer 3.2 Oz., pack of 28
STP Gas Treatment For Any Gasoline Engine - 5.25 fl oz (2 Count) From $4.98
5 options
Available in additional 5 optionsFrom$498
STP Gas Treatment For Any Gasoline Engine - 5.25 fl oz (2 Count)
3834.7 out of 5 Stars. 383 reviews
Save with
Red Line Synthetic Oil Si-1 ISN25398 Fuel System Cleaner Automotive Additive, 15 Ounce (12 Pack) $204.85
$20485
current price $204.85Red Line Synthetic Oil Si-1 ISN25398 Fuel System Cleaner Automotive Additive, 15 Ounce (12 Pack)
44.8 out of 5 Stars. 4 reviews
Popular in Posi Additive
Related Products
Hot Shot's Secret Everyday Diesel Treatment 1 Gallon for Improved Engine Performance
Hot Shot's Secret Everyday Diesel Treatment 1 Gallon for Improved Engine Performance$68.17current price $68.17Liqui Moly2007 300 ml Jectron Fuel Injection Cleaner
Liqui Moly2007 300 ml Jectron Fuel Injection Cleaner$20.00current price $20.00Red Line RL-2 Diesel Additive - 15oz. - 70303
Red Line RL-2 Diesel Additive - 15oz. - 70303$182.06current price $182.06Berryman Products 1112, B-12 Chemtool Injector Cleaner Automotive Additive, 12 oz
Berryman Products 1112, B-12 Chemtool Injector Cleaner Automotive Additive, 12 oz$11.18current price $11.18Nitro Lubricants Carb & Choke Cleaner - 12oz Sensor Safe, Fast Clean (4-Pack)
Nitro Lubricants Carb & Choke Cleaner - 12oz Sensor Safe, Fast Clean (4-Pack)$41.99current price $41.99GUNK Motor Medic Anti-Wear Additive Lead Substitute 10W, 12 fl oz
GUNK Motor Medic Anti-Wear Additive Lead Substitute 10W, 12 fl oz$13.57current price $13.57Motul Professional TRQD20700 300ml Automatic Transmission Clean Additive "Automotive Additive"
Motul Professional TRQD20700 300ml Automatic Transmission Clean Additive "Automotive Additive"$24.00current price $24.00BG 44K Fuel System Cleaner Automotive Additive, 11 Ounce
BG 44K Fuel System Cleaner Automotive Additive, 11 Ounce$27.00current price $27.00U-View Detergent Concentrated Fuel Cleaner
U-View Detergent Concentrated Fuel Cleaner$30.44current price $30.44Hot Shot's Secret Diesel Extreme 64 oz.
Hot Shot's Secret Diesel Extreme 64 oz.$31.89current price $31.89BG Platinum 44K Fuel System Cleaner 11 oz. Bottle
BG Platinum 44K Fuel System Cleaner 11 oz. Bottle$48.00current price $48.00Liqui Moly Jectron Gasoline Fuel Injection Cleaner- 6pk
Liqui Moly Jectron Gasoline Fuel Injection Cleaner- 6pk$49.99current price $49.99Automotive Additives, 100ml Engine Cleaner & Fuel System Stabilizer, Improves Power, Mileage & Efficiency, Reduces Rough Idling, Enhances Gas Performance & Smooths Engine Operations
Automotive Additives, 100ml Engine Cleaner & Fuel System Stabilizer, Improves Power, Mileage & Efficiency, Reduces Rough Idling, Enhances Gas Performance & Smooths Engine Operations$4.81current price $4.81