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30% Off Online Orders of Select Hard Parts. Enter Promo Code MMJ30 in Cart.

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Receive Up To 30% Off Your Online Purchase Of Select Parts And Accessories
Use promotional code MMJ30 at checkout to receive 30% off the following categories: Select Brake Parts, Select Hi-Performance and Truck Accessories, Batteries, Paint, Splash Guards, Select Ventvisors & Bug Shields, Springs & Spacers, Water Pumps, Belts, A/C Parts, Starters, Alternators, Fuel Pumps, Radiators, Radiator Fans, Thermostats, Caps & Clamps, Clutches, Spark Plugs, Plug Wires, CV Axles, Battery Chargers & Booster Cables, OE Locks, Rack & Pinons, Window Motors, RainX Wipers, Appearance Chemicals, Floor Mats, Lift Equipment, Hand Tools, Travel Accessories, Car Covers, Seat Covers, Wheel Covers, Body Repair, Collectibles and Apparel.

Use promotional code MMJ20 at checkout to receive 20% off the following categories: Ignition, Shocks & Struts, Chassis, Jumpstarts, Air Filters, Oil Filters, Bearings & Seals, Engine Parts, Wash Accessories, Outdoor Lifestyle, Towing, Mini Air Compressors, Tire Repair Accessories, Mufflers, Grease/Oil, Additive Chemicals, P/S Pumps, Cooling Product, Timing Belts, Specialty Tools, Radiator Hose, Motor Mounts, Mirrors, Lug Nuts, Sealants/Adhesives, Fuel Filters, P/S Hoses, Gas Cans, Oil Change Accessories, Help, Wiper Motors, Loaner Tools, Air Compressors, Horns, Books, Distributors, Sun Control and Exhaust Adapters.

Use promotional code MMJ15 at checkout to receive 15% off the following categories: Test Equipment, Power Tools, Emergency Supplies, Electronics and Stereo & Accessories (MAP pricing Exclusions).

Offers not valid in combination with any other discounts, promotions or items already on sale. Not valid on gift cards, special orders, installed merchandise, commercial or fleet purchases. Those products that are included in these offers will be displayed in product search results and product detail pages. Excludes the following brands: WeatherTech, Champion, Powerstop, Razor, Traxxas, Superchips, Hypertech, Edge, Bully Dog, Diablo, Edelbrock, Holley, NOS, Proform, Specialty Auto, Autometer, Accel, K&N, Kenwood, Pioneer, Sony, Thule, Thule Karrite, JVC, Flowmaster, Hurst, B&M, MSD, Moog, Wagner, Philips and BBK Performance. Valid online until 11:59 PM EST on 11/22/17.

Receive 10% Off Wagner branded brake parts with your online purchase. Use promotional code: WAGNER10.

Receive 20% Off Select Champion branded products with your online purchase. Use promotional code: CHAMP20.

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


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The Basics of Motor Oil

 

     

The Basics of Motor Oil

Motor oil can be a confusing beast that results in a number of questions. Do I really need synthetic? Does my new car take conventional? When do I need to switch to high-mileage? Understanding the basics of the different types of motor oil will help you answer these questions. Whether you are changing your own oil or letting us do it for you, understanding the how’s and why’s will help to make the intelligent decisions that protect your investment.

While the main function of motor oil is to lubricate the moving parts of the engine, it also helps to prevent corrosion and cool the engine by carrying heat away from the moving parts; without oil, the engine seizes up and dies. Regularly changing your oil can help combat these engine seizures and help to protect your investment promoting a long vehicle life.

Conventional Oil

Conventional oil is formulated with additive packages to ensure that it has the proper heat tolerance, breakdown resistance, and viscosity (thickness and fluidity) that engines require. For many vehicles, conventional oil is sufficient to get the proverbial job done. Depending on your application, stepping up to a more robust motor oil may be the right solution.


High-Mileage Oil

High Mileage oil is meant for vehicles that have over 75,000 miles on the odometer. High-mileage oil features unique additives that help to protect seals, which in turn prevents oil evaporation, also known as burn-off, a problem that can occur more easily in older engines. High-mileage, high-performance vehicles, however, would benefit from using a synthetic oil as opposed to high-mileage.


Synthetic Oil

Synthetic or “full synthetic” oil is engineered specifically to provide the highest level of lubrication in high and low temperatures, which results in better overall engine protection. Synthetic oil has superior cleansing properties which help to keep your engine cleaner.

While it is the most expensive type of motor oil, it is considered by many to be the best type of oil that you can put in your car. However, not every car requires synthetic oil.

If your driving conditions are not ideal, synthetic oil might be the best option for you. In bases of stop and go traffic, short trips, or very cold or hot temperatures, stepping up to synthetic might be the best case scenario.

Check your owner’s manual to determine whether you vehicle requires synthetic oil. Most newer cars require synthetic oil but older cars should run just fine with a conventional oil unless your car has over 75,000 miles on it, in which case a high-mileage oil is recommended.