The engine serves as the heart of your vehicle, so changing its oil based on the manufacturer's recommendation is perhaps the single most important thing that you can do to keep your vehicle's engine running longer. However, you must read these recommendations closely to determine the correct interval; the interval that matches your vehicle's operating conditions and your driving habits.
The Normal interval listed in the owner's manual applies to vehicles driven under ideal conditions. While you may consider your driving habits and operating conditions quite normal, read the fine print. Some exceptions to Normal driving include:
- Frequent short trips (less than 10 miles, especially during cold weather)
- Stop-and-go city traffic driving
- Driving in dusty conditions, on gravel roads, etc.
- Driving at sustained highway speeds during hot weather
- Towing use
- Diesel or turbocharged engine
Consider these facts:
- Oil requires complex additives and detergents to help prevent corrosion and sludge buildup
- Additives allow oil to flow freely at extremely cold temperatures while also providing protection under extremely hot temperatures
- Testing shows that aer 3000 miles the oil itself still lubricates, but the depletion of critical additives may no longer allow the oil to offer the same protec.on and benefits
- Longer intervals may benefit the environment, but perhaps at the expense of engine life
- Re-refined oils offer an alternative for motorists with concerns about the environment
- Re-refined oils use the remaining lubricating qualities of used oil, and replenish the depleted additives to create oils that meet the quality of new oil