How to Check Oil Level in Your Car: A Quick Guide

How do you check oil level in a car and why is it important? Checking your car’s oil level helps prevent engine damage and costly repairs. By learning how to inspect oil using the dipstick, you can keep your engine running smoothly and spot issues early. Let us show you how simple and valuable this routine check can be.

Learning how to check oil level in car is a straightforward skill that every driver should know. By taking a few minutes each month, you can avoid expensive repairs and keep your vehicle running smoothly. Oil keeps your engine happy and healthy, and regular checks are the best way to spot problems early.

Take Sarah, for example. She noticed her oil was low before a long road trip, topped it up, and avoided a costly breakdown. With a little know-how, you can do the same. This guide covers why oil checks matter, how to do them, what to look for, and how to keep your car in top shape.

Expert Opinion: Regular engine oil inspection is one of the simplest yet most effective ways to keep your car running well. Many serious engine problems start with low or dirty oil, which is easy to avoid with a quick monthly check. I have seen drivers save hundreds of pounds by catching issues early. Even if you are new to car care, following a few clear steps can give you peace of mind and help your vehicle last longer. If you are ever unsure, a qualified technician can always help you out.

Why is checking the oil level important?

Engine lubrication and risks

Engine oil acts as a lubricant for all the moving parts inside your engine. Without enough oil, friction increases, causing parts to wear out faster or even seize up. Overheating and serious engine damage can happen if oil runs low or gets too dirty. This is why a regular oil level check is so important.

Impact on running costs and resale

Neglecting oil checks can lead to big repair bills. The average UK driver spends around £450 a year on repairs, but simple checks can help you avoid extra costs. If your engine suffers damage from low oil, it can also lower your car's resale value. For dealerships, teaching customers about oil checks helps build trust and encourages repeat visits.

How do I prepare to check the oil?

Choose a level surface

Park your car on flat, level ground. This gives you an accurate reading when you check engine oil level. If the car is on a slope, the oil in the sump may settle unevenly, giving you a false reading.

Wait time after driving

Switch off the engine and wait 5–10 minutes. This allows the oil to cool and settle in the sump, so you do not risk burns and get a true measurement. If you check too soon, the oil may not show the correct level.

Practical tip: Keep a clean cloth or paper towel handy. If you spill oil, wipe it up straight away to avoid stains or smells in your engine bay.

How do I locate and clean the dipstick?

Finding the dipstick

Open the bonnet and look for the dipstick. It usually has a brightly coloured handle. If you are not sure where it is, check your owner’s manual for guidance.

Cleaning and reinserting

Pull the dipstick out fully and wipe it clean with your cloth. This removes old oil, so you get a clear reading. Push it all the way back in, then pull it out again to check the oil level.

Practical tip: If your car has an electronic oil monitor, follow the instructions in your manual instead of looking for a dipstick.

How do I read the oil level and colour?

Minimum and maximum marks

Look closely at the end of the dipstick. There are usually two marks or notches: one for minimum and one for maximum. The oil should sit between these marks. If it is below minimum, it is time to top up.

Quick steps:

Pull out the dipstick and wipe it clean.
Reinsert the dipstick fully, then remove it again.
Check where the oil sits between the marks.
If needed, top up with the correct oil.

What oil colour means

Fresh oil is usually amber or golden. If the oil looks dark and gritty, it is time for a change. If it appears milky, there may be coolant mixing in, which needs urgent attention from a mechanic.

Practical tip: Always check for any unusual smells or colours. If in doubt, ask a professional for advice.

How do I top up engine oil safely?

Choosing the correct oil

Check your owner’s manual for the right oil type. Using the wrong oil can harm your engine. Common types include 5W-30 and 10W-40, but always confirm what is best for your car.

Oil types at a glance:

Oil Type	Typical Use	Change Interval (miles)	Typical Cost (£)
5W-30	Most modern petrol/diesel	7,500–10,000	25–40
10W-40	Older engines	5,000–7,500	20–35
0W-20	Hybrids/new petrol	10,000–15,000	30–50

Step-by-step topping up

Remove the oil filler cap (usually marked with an oil can symbol).
Place a funnel in the opening to avoid spills.
Pour in a small amount of oil (about 200ml at a time).
Wait a minute, then check the dipstick again.
Repeat until the oil sits between the minimum and maximum marks.
Replace the oil cap securely.

Practical tip: Avoid overfilling. Too much oil can cause leaks or engine damage. If you accidentally add too much, remove some using a pump or seek help from a garage.

How often should I check oil and do other maintenance?

Checklist and log

Check your oil level at least once a month and before long journeys. Regular checks help you spot problems early and keep your car running well.

Maintenance log template:

- Date:

- Miles:

- Oil type:

- Amount added:

- Next check in miles:

Keeping a simple log helps you remember when you last checked or topped up.

When to see a professional

While do-it-yourself checks are great, a professional service is still important. Qualified technicians can spot issues you might miss and advise on other maintenance needs. Book a service every 7,500 miles or 12 months, whichever comes first.

Practical tip: If you notice your oil level drops quickly or the oil looks odd, get your car checked by a professional as soon as possible.

Keep Your Car Happy with Simple Oil Checks

Checking your oil level is quick and easy, and it can save you money and stress in the long run. Make it part of your regular routine, and if you need expert advice or products, Sandicliffe is always here to help.

Frequently Asked Questions

How to check oil level in car? Pull out the dipstick, wipe it clean, reinsert it fully, then pull it out again. Check the oil sits between the minimum and maximum marks. Top up if needed with the correct oil.

How often should I check my oil? Check your oil at least once a month and before long journeys for best results.

What does oil colour mean? Amber or golden oil is healthy. Dark and gritty oil means it is time for a change. Milky oil may signal a serious issue and you should see a mechanic.

Can I overfill my engine with oil? Yes, overfilling can cause leaks or engine damage. If you add too much, remove the excess or ask a garage for help.

What oil should I use? Check your owner’s manual for the right oil type. For example, many modern cars use 5W-30, but always confirm for your model.