How Much Do You Know About Motor Oil?

By: Annette
Estimated Completion Time
2 min
How Much Do You Know About Motor Oil?
Image: Shutterstock

About This Quiz

Motor oil keeps everything running smoothly in your vehicle, but do you really know all the different kinds and which one is best for your situation? When it comes to your sweet ride, not just any motor oil will do. Let's explore.
Is motor oil just engine oil?
Yes
No
Correct Answer
Wrong Answer

This is the biggest mistake. Motor oil is not simply engine oil. Other components, such as the transmission and brakes, use their own kind of oil, as well.

Does engine oil increase performance?
Yes
No
Correct Answer
Wrong Answer

Here's another misconception. Engine oil is not going to increase the efficiency or performance of your vehicle. It simply protects the engine from extreme conditions​.

Do motor oils have different ratings and components?
Yes
No
Correct Answer
Wrong Answer

This is so important to remember. Motor oils have different ratings and components that make them suitable for different uses in your car. Be careful when changing any oil yourself, because you don't want to get it wrong.

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How many types of motor oil are there?
1
2
3
Correct Answer
Wrong Answer

There are three types of motor oils. These include mineral oil, semi-synthetic and synthetic. Check manufacturer instructions for choosing the right oil.

Which puts more stress on your vehicle?
High speed
Low speed
Correct Answer
Wrong Answer

High speed definitely stresses your vehicle more than low speed. That's why it's important to always check the oil if you're running frequently at high speed.

Does dark oil mean it's time for a change?
Yes
No
Correct Answer
Wrong Answer

The Dark Oil Myth is, indeed, a myth. It doesn't mean that it's time to change the oil, but still make sure that you're changing it at the right intervals.

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You should gauge when it's time to change your oil by which of these?
Miles
Time
Either​
Correct Answer
Wrong Answer

Either of these are sufficient for knowing when it's time to change your oil. Set a specific number of miles or number of months to get it done.

Service intervals can be determined by which of these?
The owner's manual
Your mechanic
Either
Correct Answer
Wrong Answer

Service intervals can either be determined by your owner's manual or your mechanic. Both can be trusted.

When changing oil, it's a smart time to pay attention to what else?
Wheels
Filters
Coolant
Correct Answer
Wrong Answer

Not only is the oil important, but also the filters are important. Be sure to replace the filters as needed, along with the oil.

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The more frequently you change your oil, the better.
True
False
Correct Answer
Wrong Answer

Changing your oil more frequently isn't going to make a huge difference. Only change the oil if it benefits your vehicle.

Non-synthetic oils should be changed about every ____ miles.
3,000
5,000
7,000
Correct Answer
Wrong Answer

Non-synthetic oils should be changed just about every 3,000 miles. But keep in mind, this only applies to non-synthetic.

Changing oil at home is _____.
Easy
Difficult
Correct Answer
Wrong Answer

Changing oil at home is no easy task. Today's cars make it more difficult than ever, especially when it comes to changing the filter.

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Is topping-off fluids in your vehicle easy to do at home?
Yes
No
Correct Answer
Wrong Answer

Although changing oil is quite hard, topping off fluids and checking levels is easy. Be sure to watch for when levels drop down.

As vehicle engines have changed, motor oil has ______.
Remained the same
Changed as well
Correct Answer
Wrong Answer

With the modern, fuel-efficient engines, oil formulations have evolved to suit their needs. Today's motor oil is ideal for higher heat and RPMs.

Do modern oils contain additives?
Yes
No
Correct Answer
Wrong Answer

You bet that modern oils have additives. These are designed to reduce wear, maintain viscosity and suspend contaminants.

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Changing intervals for modern oil are _______ in the past.
The same as
Different than
Correct Answer
Wrong Answer

Modern oil has different changing intervals from the past. Although the 3,000-mile rule is a good thing to keep in mind, still, not all oil needs to be changed that frequently.

What is the bane of your motor oil's existence?
Sludge
Mud
Pollen
Correct Answer
Wrong Answer

Sludge is the number-one reason to change your oil. Sludge formation can ruin the oil in your car.

Modern detergent oils _____ contaminant particles.
Burn
Eliminate
Wash
Correct Answer
Wrong Answer

Basically, modern detergent oils simply wash contaminant particles, and then they suspend them in the oil. The particles are not removed until the oil is changed.

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Sludge is a sign that _____.
The oil has lost its power
The oil is oversaturated with particles
The oil has cannibalized itself
Correct Answer
Wrong Answer

When the oil becomes oversaturated with particles, some of these particles begin to settle on the engine parts. This is sludge formation.

Most contaminants in your engine come from the _____ stage.
Combustion
Exhaust
Power
Correct Answer
Wrong Answer

The combustion stage is when most of the contaminants are formed in your engine. This is when air and gasoline are mixed, then ignited.

Do synthetic oils prevent contaminants?
Yes
No
Correct Answer
Wrong Answer

No, synthetic oils do not prevent contaminants. They're a bit better at suspending particles, but they don't prolong oil changes all that much​.

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If you have sludge, should you dislodge it at home?
Yes
No
Correct Answer
Wrong Answer

If you have a lot of sludge buildup, you definitely don't want to dislodge it at home. It's not good for your engine to remove it all at once.

One precise way of gauging the need for an oil change is _____.
Online forums
Intuition
Oil analysis
Correct Answer
Wrong Answer

Oil analysis is probably the most precise way of gauging when it's time to get an oil change. This should always be done by a professional.

The automotive industry tells us to change oil ______ than is necessary.
More frequently
Less frequently
Correct Answer
Wrong Answer

You can consult a mechanic about this. But generally, the automotive industry is telling you to change your oil a bit sooner than is necessary​. That being said, there's nothing wrong with erring on the side of caution.

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People who enjoy changing oil are called what?
Oil junkies
Oilheads
Recreational oil changers
Correct Answer
Wrong Answer

Those who change their oil more frequently than necessary because they like to are known as recreational oil changers. It's understandable why a lot of guys find this process appealing.

Modern oils naturally do what?
Stay light in color
Turn dark
Correct Answer
Wrong Answer

Modern detergent oils naturally get dark in color, because they're sucking up those particles. Non-detergent oils stay lighter than detergent oils.

How do you keep gunk from depositing​ in your oil pan?
Soap
Dispersant
Coolant
Correct Answer
Wrong Answer

Dispersant is what you need to keep gunk from depositing in your oil pan. Other than that, when your oil gets dirty, it's a good sign.

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In other countries, the recommended change interval is ______ than in the U.S.
Longer
Shorter
Correct Answer
Wrong Answer

In general, foreign countries have a longer changing interval. American manufacturers recommend that we change the oil in U.S. cars quite frequently.

Do cars in dustier areas have dirtier oil?
Yes
No
Correct Answer
Wrong Answer

Cars in dusty, hot conditions are definitely going to have dirtier oil. That's why not every car falls into the same service category.

A car in a stressful environment falls into the ________ category.
Severe service
Slow service
Catastrophic service
Correct Answer
Wrong Answer

A car that is constantly operating in difficult conditions is going to be in the severe service category. That means that their service interval is different​ from other cars.

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U.S. and Canadian fuel have higher levels of what?
Petroleum
Sulphur
Carbon
Correct Answer
Wrong Answer

U.S. and Canadian fuels have higher levels of sulphur. This can cause more oil contamination.

Synthetic oils withstand _____ temperatures.
Higher
Lower
Correct Answer
Wrong Answer

Synthetic oils withstand higher temperatures. They also have more base stock and less viscosity modifiers.

The filter should be changed how often?
Every 3,000 miles
At every other oil change
At every oil change
Correct Answer
Wrong Answer

Today, it's smart to change your oil filter at every oil change. There is no point to changing the filter without changing the oil.

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Professional oil changes take less than ______.
30 minutes​
10 minutes
5 minutes
Correct Answer
Wrong Answer

A good professional oil change should take less than 30 minutes. Professional oil changes give you legal proof of when you got it done.

Always insist on the type of oil that is ______.
In the store's discount bin
Listed in your car manual
In your neighbor's garage
Correct Answer
Wrong Answer

It's important to always insist on the oil that is recommended in your owner's manual. If the oil change station doesn't have it, go elsewhere.

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