Engine oil not only loses its lubrication quality or viscosity over time, but it also collects acids and other by products of combustion such as water. These substances are enemies of bearings, other metal surfaces, seals and gaskets. Even though oils are continuing to increase in lubrication quality, the substances in suspension do damage to the internal engine components.

Changing oil and filter on a 3 month or 3,000 mile schedule is “good insurance” against the possible damage that can occur. If the facility that is performing the oil change is inspecting the vehicle properly, you will save money by identifying a need before it becomes an emergency. It is always wise to make sure a certified technician is handling your vehicle.

It is typical that they not need replacement for at least 60,000 miles under normal driving conditions. Replacing worn belts reduces the chance of breakdowns, the chance of damaging other components when they break and insures that all belt-driven components operate normally. Replacing worn hoses reduces the chance of failure that could cause engine overheating, and allows for testing of the coolant.

It is best to have the cooling system flushed at the intervals recommended by the manufacturer. Having the system flushed once a year is commonly recommended if the vehicle is driven regularly. Coolant breaks down over time, becoming corrosive which can cause premature failure of gaskets and seals. The idea is to replace the coolant before it gets contaminated to avoid costly repairs.

Rotating your tires every 3rd oil change or 9,000 miles (based on tire application) helps insure the life of the tire and its warranty. Avoidance of this can cause tire damage (cupping), and may make the steering of the vehicle difficult. Pay close attention to the tread depth of your tires to observe that the wear patterns are equal.

It is best to have the differential and transfer case fluids replaced at the intervals recommended by the manufacturer under normal driving conditions. Under severe conditions it may be advisable to have the fluids changed more often. The fluids in these units do become contaminated over time, and during normal use can lose their lubrication qualities.

It is best to have the transmission fluid flushed at the intervals recommended by the manufacturer under normal driving conditions. Under severe service, it may be advisable to have it flushed more often. Transmission fluid breaks down over time due to the extreme temperatures during operation. The idea is to replace the fluid before it looks dark or smells burned so the transmission can operate at its best. This will prolong the life of the transmission and head off costly repairs and inconvenience for you.