of automakers today call for oil changes at either 7,500 or 10,000
and the interval can go as high as 15,000 miles in some cars.
Yet this wasteful cycle continues largely because the automotive service
while fully aware of the technological advances,
continues to preach the 3,000-mile gospel
as a way to keep the service bays busy.
3,000-mile oil change is "a marketing tactic
that dealers use to get you into the service bay on a regular basis
SAE 10W-30? SAE 5W-40? WHAT ARE THESE NUMBERS AND LETTERS?
SAE (Society of Automotive Engineers) describe how well an oil flows
(viscosity) through an engine
when the engine is cold in the morning and when the engine is warmed up
match this number to what is recommended in your
Most motor oils today have two numbers (multi-viscosity): for example,
The low number
with the W
(stands for Winter), or cold temperature number,
relates to how well the oil can be pumped or pushed through the engine
at certain cold temperatures.
(in this example 30) relates to how well the oil flows at higher engine
Be careful, as higher or lower viscosity numbers may not be compatible
with your engine.
To find out what oil grade is right for your engine, check your
vehicle owner's manual.
WHEN DO I NEED AN OIL CHANGE? HOW DO I CHOOSE THE RIGHT TYPE OF OIL?
The timing of oil changes can vary,
depending on the type of vehicle you drive, where you drive and how you
Your vehicle manufacturer has done rigorous testing to help determine
the timing between oil changes and the proper oil to use.
All of this information can be found
in your vehicle