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120,000 Mile Car Maintenance Schedule
With Explanations below
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Air filter - Replace the air filter about every 15,000 miles for normal driving conditions. A dirty air filter will not cause the engine to run bad, stall, or misfire. A dirty filter can cause reduced fuel economy and higher exhaust emission gases. Fram filters offers air, fuel, oil, pcv and interior cabin filters for most cars and trucks. We have been using Fram filters in my shop for years and they are probably one of the most recognizable aftermarket filter brands on the market.

Antifreeze/Coolant
Inspect: Check the fluid level in the plastic "overflow reservoir" and the actual level of coolant inside the radiator. You should be able to visually see the coolant level inside the radiator when the engine is cold. Caution: remove the radiator cap only after engine has cooled, and it is safe to do so. If the antifreeze is dirty or rusty colored, or has lost its over heating/anti-freezing capability it should be flushed and replaced. Regular life antifreeze is bright green in color, and the newer "extended" longer life antifreeze is red in color. Either type can be used but should not be mixed together.

Replace: Drain and flush old coolant from the radiator and reservoir bottle, inspect the heater and radiator hoses and clamps for replacement, and install a new radiator cap. A vented replacement radiator cap safely removes hot steam from the radiator and makes emergency road side coolant inspections easier and safer. Prestone antifreeze is what we use at my and is probably one of the most trusted brands on the market. Prestone also offers a variety of radiator flush equipment and additives.

Battery - Check terminals and cables--loose or dirty battery cables are a common "no start" condition. Cable ends and battery terminals should be cleaned with a wire brush and light sand paper periodically to remove any corrosion build up. Battery terminal protecting spray coatings can also be helpful in reducing the formation of corrosion. I have used A/C Delco batteries for many years and find them to be very dependable and 100% maintenance free.
Caution: remove all metal objects like wrist watches and rings before working around a battery-a spark or fire can occur (I have the scars to prove it.)

Battery Load - Battery "load" is how much load or drain can be placed on the electrical system before the battery begins to discharge itself. Think of it as how much electricity the battery can store before having to be recharged. It is not uncommon for batteries to go completely "flat" or discharged without ever giving a warning signal to the operator.

Have the mechanic check the battery condition and load levels at every oil change interval if the battery is over 2 years old to ensure the battery will not leave you unexpectedly stranded. A weak battery that is not storing enough power will cause the alternator to work harder and possibly cause premature alternator failure. Dirty or corroded battery terminals can severely reduce the lifespan of the battery and alternator. A quick and inexpensive battery check and cable inspection can be done at each oil change.

The replacement battery should be the same size, have the same battery cable connections, and should be the same electrical capacity as the original battery.

Belts Check for worn or loose belts. Belts should be replaced if they are worn on the edges, frayed, or cracked. Do not spray silicone or WD40-type chemicals on a noisy belt-it will usually just make the noise worse. Check the tension on each belt, and see if anything is rubbing or coming in contact with it. I have used Gates belts, radiator and heater hoses and timing belts for years and highly recommend them for aftermarket replacement rubber components.

Differential Fluid - (A rear differential is only found on rear wheel drive cars and trucks.)
Inspect: The rear differential (commonly referred to as the rear end) fluid or grease should be checked during each routine oil change and topped off as needed with the fluid prescribed in the owner's manual.
Replace: Drain and flush the rear end fluid periodically to remove any metal filings that have normally accumulated in the differential housing. Replace the differential cover gasket and add any recommended supplemental additive prescribed in the owner's manual. I have been using Wynn's differential fluid additives for years and strongly believe in their line of fluid additives.

Radiator and Heater Hoses

Inspect: To check for leaks or bulges with the engine cold, squeeze the radiator hoses with one hand at all points along the hose. If soft spots, bulges, or a "cracking feeling" is identified, replace ALL water hoses at the same time.
Replace: Replace all water hoses including heater, bypass, and radiator hoses at the same time. The antifreeze/coolant, hose clamps and radiator cap should also be replaced at this time. If the car overheated or has been running hotter than normal, replacing the thermostat during this time might also be a good idea.

Engine Oil
Inspect: Check oil level when engine is cold and with vehicle on level ground.
Replace: Change oil and filter. Check all fluids, tires and air pressure, air filter, belts and hoses and spare tire condition when changing the engine oil. This is also a great time to clean the corrosion from the battery cables. I have been using Amalie motor oil for many years at my shop. it is a great product at a great price.

Some vehicle manufacturers recommend on oil change every 3,000 miles. For more information on the 3,000 mile oil change sign up for our free newsletter and receive a free copy of the ebook Motor Oil Bible that reveals the myth of the 3,000 mile oil change.

Power Steering Fluid
Inspect: Check level. Power steering fluid can either be pink or clear in color, usually only a very small amount is needed to top off fluid level. If more than 2 oz. is needed, have the system checked for leaks or wear.
Replace: Power steering fluid just like any other fluid becomes dirty and contaminated and should be replaced with clean fluid periodically. Dirty power steering fluid can cause the power steering pump or the power steering gear assemblies to fail and can cause premature wear to occur.

Shock Absorbers and Struts
Inspect: Check for fluid leaks around the shock. Some shocks are filled with oil and a visible fluid leak can be detected. Excessive bumpy ride, leaning, or swaying in one direction more than normal on brake application or around turns can also indicate worn or damaged shocks. I have been using Monroe gas filled shocks and struts for many years with great success.

Replace: Replace all four shocks/struts at the same time to get maximum benefit and drivability. In some cases a wheel alignment should be performed after new struts are installed.

Tires
Inspect: Check pressure and tread wear. Check air pressure cold unless otherwise described in the owner's manual. Inspect tires for uneven tread wear, punctures, bulges, or cuts in sidewall of the tire.
The Tire Rack.com has brand name tires, custom wheels, brake and suspension parts at the best prices we have seen. They offer a great warranty and drop shipment capability to your local repair shop is available. Don't know what size tire your car should have? The Tire Rack.com has a very powerful and helpful online catalog to help you make the best replacement choice for tires and custom wheels.

Rotate and balance: Routine rotation and balancing can greatly extend the life of your tires. Most front end "shake and shimmy" complaints can be attributed to out of balance, or out of round tires. When rotating or replacing tires the best tires should go to the front of the car. Some tires are "directional" and should be kept on the same side of the car turning in the direction indicated on the side of the tire. Ask your mechanic if he would inspect the brakes for free when rotating and balance tires.

Transmission Fluid
Inspect: Usually the transmission fluid level is checked with the engine hot and in park, and with engine running. Check your owner's manual for proper fluid type and proper fluid level inspection procedures. Automatic transmission fluid is usually pink in color. Most standard shift transmissions will have a drain plug to service the fluid. Some stick shift transmissions use engine oil as a lubricant; consult your owner's manual when servicing. It could also be a good idea to have the replacement fluid type information available for the repair shop.

Replace: Consult vehicle owner manual for proper fluid type and service interval. If applicable, replace the internal automatic transmission filter or clean the re-usable screen when changing the transmission fluid. A transmission pan gasket will also be required during a filter change. Some newer model vehicles require special additivesand detergents---consult owner's manual for fluid specifications.

Windshield Wiper Blades
Inspect: Check wiper blades for wear and washer fluid level during a regular oil and filter change. Don't make the mistake of never thinking about replacing or inspecting the wiper blades until you really need them.
Replace: Some wiper blades are different lengths for driver and passenger side. Measure old blades before replacing with new ones. Manufactures like Anco, offer many different premium replacement wiper blade types (i.e. for snow and ice, off road, and severe duty).

Windshield Washer Fluid Check level. Anti-freezing and water repelling additives can also be added to the washer fluid reservoir. Not only will washer fluid aid in removing dirt from the windshield, but also it will act as a lubricant to prolong the life of the wiper blade. Adding rubbing alcohol to the washer fluid can be harmful to the rubber on the wiper blades.

Exterior Care Regular car washes can remove air borne chemicals through "acid rain" that get deposited onto the paint surface, and dull the layer of "clear coating" that is meant to protect the paint and help promote shine and luster. Car wash soap should be used and not dish or household soaps, as their chemical makeup can damage the clear coat. Semi-annual waxing of the exterior paint surface will help to protect this important clear coat. A new wax that seems to be taking the car detail market by storm is WWW.5StarShine.com Use promotional code 10off and receive $10 bucks off your order!!!!!

Timing Belt - Replace as scheduled if applicable for your vehicle. Timing belts are commonly used on Japanese cars. The timing belt is a rubber belt that drives the engine's internal components. The timing belt is not easily visible and should be replaced at the indicated mileage and time not on visual wear like a normal drive belt. If the timing belt breaks, the engine stops and costly internal engine damage can occur. The water pump on some vehicles is driven by the timing belt, and should be replaced with the timing belt replacement. Consult owner's manual or ask the repair shop if this is the case on your car. Not sure if your car or truck has a timing belt?

Lights and Bulbs Save yourself the hassle of failing a vehicle inspection or being pulled over by the police for a tail or brake light bulb out. Have all lights checked when performing a regular engine oil change..

A/C Refrigerant Level and Pressures - Air conditioning refrigerant commonly known as "Freon" should be checked for proper pressures and level of refrigerant oil periodically. Low Freon and refrigerant oil levels can cause premature wear on air compressors, and decrease overall performance of the a/c system. Although the a/c system is a sealed unit, it is not uncommon to have to add small amounts of refrigerant (Freon) periodically due to small leaks and seepage. Freon is a gas that is under high pressure and should only be serviced by a trained professional.

CV Boots and CV Joints - Used mostly on front wheel drive cars, Constant Velocity (CV) joints are shafts that connect the transmission to the wheels with knuckle joints on either end of the shaft. The shafts provide the power to turn the wheels by linking the transmission to the wheel. There are two shafts and four joints on most front wheel drive cars. CV boots are made of pliable rubber to cover the CV joint. Torn CV boots allow grease meant to lubricate the joint to escape, and allows dirt and debris to enter inside the joint. A worn CV joint usually produces a clicking noise from the wheel area on hard turns.


Drive Shaft and U-Joints - Rear wheel drive cars and trucks have drive shafts in place of CV joints that are found on front wheel drive cars. The drive shaft links the transmission to the rear differential to provide power to turn the wheels. Most drive shafts have two or three U-joints connecting the shaft to the transmission and rear differential. The shaft and joints should be checked for wear during regular engine oil changes. Some U-joints can and should be greased during the "grease job" portion of the oil change.

Front End Alignment - The front end components of a vehicle can be out of alignment, but not give any indication or warning signs. Shimmying and shakes in the front end are usually not caused by the car being "out of alignment," but by out of balance or lack of rotation with the tires. The vehicle pulling to one side, or unusual tire wear are the two most common "out of alignment" warning signs. Check the alignment and all wearable parts in the front end periodically. Always have the front end aligned when replacing tires. A front end alignment is commonly referred to as a "four wheel alignment" these days. Some adjustments to the rear alignment are available on most newer model vehicles, thus the term four wheel alignment.

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