4 Best Motor Oil To Use In Your Lawnmower

So, you’re having thoughts about using your motor oil in your lawnmower, but we might ask why we would even want to do that. We may as well go and get some lawnmower oil because sometimes it’s cheaper.

But there are situations with some people, and I’ve been here myself where you want to change the oil on your lawnmower and you look inside your garage and find some leftover oil that you used in your car and of course, then we wonder can we use this oil.

You can use a motor/car oil in your lawnmower, but you need to check the temperature and viscosity of the oil.

Best motor oil to use in your lawnmower for different seasons and temperatures

5w-30 – Best For Winter(-30 to 35 degrees centigrade) 


SAE30- Best For Summer(40-100 degrees centigrade)


10w-30- Best for Mild cold and hot season (-18 to 30 degrees centigrade)


5w30 Synthetic Oil -Best for all season (-20- 120 degrees) 

motor oil to use in your lawnmower

How often to change lawn mower oil?

Lawnmower maintenance is important to extend the life of your push mower or lawn tractor, and one of the most critical engine maintenance items is regular oil change. On average the lawnmower oil should be changed every mowing season. You can also read the manual that comes with the mower. It’ll tell you when to change the oil.

 What kind of oil goes in a lawnmower?

  • 5w-30
  • SAE30
  • 10w-30
  • 5w30 Synthetic oil

How much oil does a lawnmower take?

On average a walk-behind lawnmower takes around 15-18 Oz engine oil. And the riding mower takes around 48-64 Oz engine oil.

FAQ About Lawn Mower Oil

What kind of oil do you use for a lawn mower?

A lawn mower's oil type is determined by its engine type, the typical operating temperature, and especially by the manufacturer's recommendations. Generally, small-engine oil with a mix of oil and fuel is suitable for two-stroke engines, while straight oil is suitable for four-stroke engines. The type of oil depends on factors such as temperature.

Can you use regular motor oil in a lawn mower?

You can use regular motor oil in lawn mowers with four-stroke engines, but always check the manufacturer documentation. There are some automotive oils that are too high in viscosity and ideal for larger engines, so assuming more is better is not always true. There are many models of deluxe push mowers and riding mowers that use regular motor oil. Motor oil cannot be used on two-stroke engines; they need a mix of fuel and oil specifically formulated for small engines.

What's the best oil for lawn mowers?

The oil recommended by the manufacturer is the best to use in a lawn mower. The viscosity of oil, as well as its type, can vary depending on a number of factors such as temperature, conditions, and engine type.

Can I use 10W30 instead of SAE 30 in my lawn mower?

It is not recommended. In most cases, SAE 30 is recommended for older models of mowers with straight-weight engines. As these models were designed before multigrade oil became available, you should not use the multigrade oil option.

Final Thoughts

The right oil and regular oil changes are essential to keeping your lawn mower running efficiently and effectively, and they can extend the life of the mower's engine. Make sure you know which oil is best for your lawn mower based on its model and the manufacturer's recommendations. Consider operating conditions, viscosity, and engine type.

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