See Details

Up to 25% Off Online Orders of Select Parts & Accessories. Enter Promo Code MMJ25 in Cart.

Close (X)

Receive Up To 25% Off Your Online Purchase Of Select Parts and Accessories Instantly

When items are added to the cart, the discount will automatically deduct off the price of the qualifying items. Offers not valid in combination with any other discounts, promotions or items already on sale. Not valid on gift cards, special orders, installation, commercial or fleet purchases. Those products that are included in these offers will be displayed in product search results and product detail pages. Excludes select products, items already on sale and MAP priced brands & items. For full category inclusions and disclaimers, See Details Here. Valid online until 11:59 PM EST on 6/30/18.

Additional Promotions Not Included in the above:

Receive 20% Off Select Wagner branded brake parts with your online purchase.

Receive 10% Off Select Champion branded products with your online purchase. Use promotional code: CHAMP10.

Receive 10% Off Select FelPro branded products with your online purchase. Use promotional code: FELPRO10.

Shop for Products

Narrow Your Results

  • Brand
  • Price

Learn More About...

Oil Additives

Sort By:
View:
$4.49
$2.90
Sale
Price
$2.32
With Promotion
  • Part #: 4105R|
  • SKU: 1148730

Available tomorrow

Pay in Store Available

    • GUARANTEED to stop oil leaks
    • Seals common engine leaks within 300 miles of driving
Sale Price
$4.49
$2.90
$3.99
$3.19
With Promotion
Play
  • Part #: 65148|
  • SKU: 118536

Available tomorrow

Pay in Store Available

    • Oil additive helps protect against engine wear
    • Motor oil additive helps reduce oil consumption
Retail
$3.99
$4.69
$3.75
With Promotion
  • Part #: MF3|
  • SKU: 8385297

Available tomorrow

Pay in Store Available

    • Removes accumulated gums, varnishes and sludge from internal engine parts
    • Releases sticky valves & piston rings, allowing oil to circulate freely to all parts of the motor
Retail
$4.69
$4.99
$3.99
With Promotion
Play
  • Part #: 4416|
  • SKU: 8361466

Available tomorrow

Pay in Store Available

    • Works on all 4, 6, and 8 cylinder vehicles
    • Contains high-shear polymers which provide a seal for worn pistons and rings to stop blow-by
Retail
$4.99
$4.99
$3.99
With Promotion
  • Part #: M37-12|
  • SKU: 118312

Available tomorrow

Pay in Store Available

    • Quiets noisy filters
    • Super concentrated formula eliminates valve noises by dissolving gum, sludge and dirt deposits from valve lifters
Retail
$4.99
$7.99
$5.40
Sale
Price
$4.32
With Promotion
  • Part #: 800002215|
  • SKU: 672513

Available tomorrow after 12 p.m.


    • Provides better engine protection in high mileage vehicles than engine oil alone
    • Helps remove sludge and other deposits
Sale Price
$7.99
$5.40
$5.79
$4.63
With Promotion
  • Part #: 2116|
  • SKU: 8565686

Available tomorrow

Pay in Store Available

    • Reduces smoke and plug fouling
    • Improves power and performance
Retail
$5.79
$5.89
$4.71
With Promotion
  • Part #: 22001|
  • SKU: 8975771

Available tomorrow

Pay in Store Available

    • Coats internal engine components to prevent corrosion
    • Displaces moisture from metal to protect engine
Retail
$5.89
$5.99
$4.79
With Promotion
Play
  • Part #: 1010|
  • SKU: 555331

Available tomorrow

Pay in Store Available

    • Works with all gasoline and diesel engines using conventional, high mileage, and synthetic engine oil
    • Contains no particles that will clog oil passages or filters - completely safe to use
Retail
$5.99
$5.99
$4.79
With Promotion
  • Part #: MM12R|
  • SKU: 118712

Available tomorrow

Pay in Store Available

    • Helps improve fuel economy
    • Cleans and lubricates fuel injectors and carburetors
Retail
$5.99
$6.29
$5.03
With Promotion
Play
  • Part #: 78595|
  • SKU: 627063

Available tomorrow

Pay in Store Available

    • Helps rejuvenate seals and gaskets.
    • Contains ZDDP anti-wear agents.
Retail
$6.29
$6.99
$5.59
With Promotion
Play
  • Part #: 100QR|
  • SKU: 118286

Available tomorrow

Pay in Store Available

    • Rislone Engine treatment is a high quality penetrating lubrication oil formulated with protective engine additives and special cleansing agents that go above and beyond other engine treatments
    • Removes and prevents engine sludge buildup
Retail
$6.99
$6.99
$5.59
With Promotion
  • Part #: MM13R|
  • SKU: 118736

Available tomorrow

Pay in Store Available

    • Helps improve fuel economy
    • Cleans and lubricates fuel injectors and carburetors
Retail
$6.99
$7.49
$5.99
With Promotion
  • Part #: 2117W|
  • SKU: 8741866

Available tomorrow

Pay in Store Available

    • Reduces smoking and stops oil leaks
    • Improves power and performance
Retail
$7.49
$7.97
$6.38
With Promotion
  • Part #: 00009|
  • SKU: 1224049

Available tomorrow

Pay in Store Available

    • Restores cylinder compression
    • Restores horsepower
Retail
$7.97
$7.99
$6.39
With Promotion
  • Part #: 20401|
  • SKU: 8994307

Available tomorrow

Pay in Store Available

    • Stops and prevents engine oil leaks
    • Recommended for rear main seal repair
Retail
$7.99
$7.99
$6.39
With Promotion
Play
  • Part #: 1040|
  • SKU: 555348

Available tomorrow

Pay in Store Available

    • Bar's Leaks Concentrated Rear Main Seal Repair restores the seal to like-new condition and also contains additives to stop any existing leaks
    • Works with ALL gasoline and diesel engines using conventional, high mileage, and synthetic oil
Retail
$7.99
$8.29
$6.63
With Promotion
  • Part #: 17881|
  • SKU: 1966219

Available tomorrow

Pay in Store Available

    • Helps protect against engine wear
    • Combats engine deposits
Retail
$8.29
$8.99
$7.19
With Promotion
  • Part #: MFD1|
  • SKU: 1783207

Available tomorrow

Pay in Store Available

    • Use before every oil change
    • For use with all engines, including turbos
Retail
$8.99
$9.99
$7.99
With Promotion
Play
  • Part #: 4405|
  • SKU: 555317

Available tomorrow

Pay in Store Available

    • Rislone 3X Concentrated ZDDP Engine Oil Supplement with Zinc Treatment is a high performance formula that stabilizes the motor oil to insure against viscosity and thermal breakdown
    • Clinging action keeps bearings and other internal engine parts lubricated where normal oil fails
Retail
$9.99
$10.97
$8.78
With Promotion
  • Part #: 00012|
  • SKU: 1224056

Available tomorrow

Pay in Store Available

    • Restores cylinder compression
    • Restores horsepower
Retail
$10.97
$11.97
$9.58
With Promotion
  • Part #: 00016|
  • SKU: 1224063

Available tomorrow

Pay in Store Available

    • Restores cylinder compression
    • Restores horsepower
Retail
$11.97
$11.97
$9.58
With Promotion
  • Part #: 10278|
  • SKU: 9722806

Available tomorrow

Pay in Store Available

    • Treats front and rear engine seal leaks
    • Contains no harmful solvents
Retail
$11.97
$11.99
$9.59
With Promotion
Play
  • Part #: 1000|
  • SKU: 9403493

Available tomorrow

Pay in Store Available

    • Bar's Leaks Engine Repair restores lost compression and power, reduces noise and oil consumption while improving the performance of worn cylinders, rings, bearings and seals
    • Bar's Leaks Engine Repair can be used to top off the existing oil when low or added to the engine when changing the oil and filter
Retail
$11.99
$11.99
$9.59
With Promotion
  • Part #: AS661Y|
  • SKU: 1773196

Available tomorrow

Pay in Store Available

    • Fast acting beads quickly locate leaks
    • Kevlar resin binds to metal
Retail
$11.99
$12.99
$10.39
With Promotion
Play
  • Part #: 10001|
  • SKU: 9103342

Available tomorrow

Pay in Store Available

    • Extends oil life and lowers oil temperature in any engine - gasoline or diesel
    • Raises oil pressure, reduces smoking, leaking, knocking and blow-by in worn engines
Retail
$12.99
$16.97
$13.58
With Promotion
Play
  • Part #: 10130|
  • SKU: 9296206

Available tomorrow

Pay in Store Available

    • Recommended in new engines with petroleum or synthetic oil to maintain new car specifications
    • Reduces friction while improving performance and fuel economy
Retail
$16.97
$16.99
$13.59
With Promotion
  • Part #: DLOS06|
  • SKU: 9408931

Available tomorrow

Pay in Store Available

    • Dura Lube Advanced Engine Treatment helps keep engines clean by reducing Heat & Friction, a major cause of engine sludge.
    • Regular use of Dura Lube Advanced Engine Treatment helps maintain a healthy running vehicle.
Retail
$16.99
$16.99
$13.59
With Promotion
  • Part #: 11100|
  • SKU: 8753692

Available tomorrow

Pay in Store Available

    • Reduces harmful friction and excessive heat in both gasoline and diesel-fueled engines.
    • Helps protect the engine in the event of oil or coolant loss.
Retail
$16.99
$19.99
$15.99
With Promotion
  • Part #: 11000|
  • SKU: 9045228

Available tomorrow

Pay in Store Available

    • Reduces harmful friction and excessive heat in both gasoline and diesel-fueled engines.
    • Helps protect the engine in the event of oil or coolant loss.
Retail
$19.99
$19.99
$15.99
With Promotion
  • Part #: 750002|
  • SKU: 8985901

Available tomorrow

Pay in Store Available

    • Protects against friction and heat
    • Improves compression
Retail
$19.99
$19.99
$15.99
With Promotion
Play
  • Part #: 10063|
  • SKU: 209544

Available tomorrow

Pay in Store Available

    • Formulated to protct camshaft, lifters and valve train during break-in
    • Use with every oil change on flat tappet, high performance engines
Retail
$19.99
$21.97
$17.58
With Promotion
Play
  • Part #: 49499|
  • SKU: 929853

Available tomorrow

Pay in Store Available

    • Easy to use pour-n-go
    • Repairs and reconditions rubber seals
Retail
$21.97
$21.99
$17.59
With Promotion
  • Part #: 750001|
  • SKU: 8082354

Available tomorrow

Pay in Store Available

    • Protects against friction and heat
    • Will not cause corrosion of engine components
Retail
$21.99
$24.99
$19.99
With Promotion
  • Part #: MM14R|
  • SKU: 1052684

Available tomorrow

Pay in Store Available

    • Helps improve fuel economy
    • Cleans and lubricates fuel injectors and carburetors
Retail
$24.99
$26.97
$21.58
With Promotion
  • Part #: 51-212|
  • SKU: 9523874

Available tomorrow

Pay in Store Available

    • zMAX Engine Formula has the unique ability to soak into metal and help reduce engine deposits.
    • Formula will lead to improved engine performance, extended engine life and reduced emissions.
Retail
$26.97
$34.99
$27.99
With Promotion
Play
  • Part #: 10002|
  • SKU: 9149139

Available tomorrow

Pay in Store Available

    • Extends oil life and lowers oil temperature in any engine - gasoline or diesel
    • Raises oil pressure, reduces smoking, leaking, knocking and blow-by in worn engines
Retail
$34.99
$39.97
$31.98
With Promotion
Play
  • Part #: 51-011|
  • SKU: 9202089

Available tomorrow

Pay in Store Available

    • Uniquely soaks into metal and reduces engine deposits
    • Improves performance
Retail
$39.97
Sort By:
View:
PayPal available for online purchases. Major credit cards accepted online and in store. Pay online, in-store or take advantage of our Pep Boys credit card. Learn more and see additional details in cart.