There is much controversy over when and how to change your vehicle's engine oil. Today we're going to try and create some clarity on this topic.
Many old-timers live (and die) by the rule that you replace it every 1,000-3,000 miles. Most technicians recommend 5,000 mile intervals. Some folks say to follow the Maintenance light or Service Interval systems built into the newer vehicles. But who is correct? Is there a correct answer?
Surprisingly, the answer is there is no correct answer... kinda.
For those who don't understand engine mechanics, engine oil is a lubricant that reduces wear on your engine internals. It's pumped from the oil pan and spreads through most moving parts of the engine to provide smooth engine performance. Some engines have components that are operated by oil pressure, which keeps the engine timing in place and performs other valving functions. Simply enough, when you don't have enough oil your engine can't operate the way it needs to, especially because newer engines use more advanced oil systems.
Now that we understand the basic functions of engine oil, when should we have it changed? Most bottles today will tell you that their oils are good for "up to 15,000 miles" or "good for 10,000 miles". In theory, that may be correct. But what that deceitfully doesn't reckon with is oil consumption. Each car burns more oil as each engine gets older. Sometimes this can be seen in white or blueish exhaust fumes. And while these newer synthetic oils may provide ample lubrication that long, that doesn't remove the responsibility of checking oil levels regularly. For example, I see many Hyundai and Kia motors that by design seem to consume oil a lot. And even when the older vehicles wait for a 5,000 mile interval, they always seem to be out of oil when they come in. So in this case, the old-timers are correct! Changing oil more frequently on these engines is good, as they consume more oil. But on the other hand, many other vehicles seem to barely consume oil over a 5,000 mile interval. So can we wait for more mileage to accumulate on these engines? Technically yes, but it's not recommended.
To wrap it up, the lines of oil changing rules are blurry. There is no correct answer. The only correct answer is your engine needs oil to last for many years. And what seems to be more important is that you check your oil and keep it topped off, especially if you drive an older vehicle. Most garages will recommend you change you oil every 5,000 miles and that is the safest bet; but we would also all do well to keep an eye on our oil levels and get to know our vehicle's oil consumption better. Each engine has it's own personality and reacts different.
So keep your engine topped off with oil, and consider getting that recommended 5,000 mile oil change schedule a shot. Your car will thank you.
Have a great Sunday,
The CarKeeper
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