23 HP Kawasaki Engine Oil Type? & Recommended Products

Written by

Charles Bolte


Vernon Hoppe 

23 HP Kawasaki Engine Oil Type

The 23 HP Kawasaki engine line is well-known among engine enthusiasts today. But like with any other engine, it also needs the right oil to run smoothly and reliably for a long time.

The 23 HP Kawasaki engine oil type can be mineral, synthetic, or blended with varying oil viscosity grades depending on different factors and conditions.

Read this article to learn the best oil for Kawasaki lawn mower engine you should use.

Recommended Oil for 23 HP Kawasaki Engine

Engine oils are not a “one-fits-all” type of lubricant; different kinds of oil have varying viscosity grades, classifications, and applications. When it comes to lawn mower engines, knowing what oil to use is critical.

Like car engines, 23 HP Kawasaki engines also need a specific oil to run properly and get better protection against wear and tear or sudden temperature changes. According to the Kawasaki owner’s manual, motor oils with SF, SG, SH, SJ, or SL API Service Classifications should be used.

The following factors should be considered when choosing the best oil for your engine:

1. Recommended oil viscosity


Viscosity grade is key in choosing the right Kawasaki 23 HP engine oil, like with any other engine: it determines which oil works best for different temperatures, what offers the best engine protection, and what fits your manufacturer’s requirements.

Official document recommends using the SAE10W-40 oil classification for most working conditions, along with the SAE10W-30. On the other hand, if you want something for higher ambient temperature conditions, it is best to use the 20W-50, which reduces oil consumption.

The 10W-30 engine oil is rated for temperatures ranging from 14 degrees to north of 86 degrees Fahrenheit while 10W-40 oil works best from 14 degrees to north of 104 degrees Fahrenheit. For more details, refer to Kawasaki’s engine oil viscosity graph below.


In addition to temperature, you would also want to consider thicker or heavier oils if you have an older lawn mower engine to prevent it from crippling. The reason is that leaks are common among aging motors and heavier oils work better in giving a good seal.

Related post: SAE 30 vs 10w30 comparison.

On the other hand, lighter or less viscous oils are perfectly fine if you have a newer model engine.

Here’s a list of 23 HP Kawasaki engines that are similar in the viscosity grades that they use:

List-of-23 HP-Kawasaki-engines

  • FS691V
  • FR691V
  • FH680D
  • FD680V
  • FH680V
  • FX730V

Ultimately, following the owner’s manual remains the best guide in choosing the right oil for your Kawasaki engines. The oil viscosity is one of the most important factors you should consider, so don’t put aside what your manual says.

2. Engine oil types for Kawasaki lawn mower engines

There are three engine oil types (conventional, synthetic, and blend) on the market and all three can be used in Kawasaki lawn mower engines provided that you follow the manufacturer’s recommended oil grades.

However, while all three can be compatible with your Kawasaki engine, each one has its own features and advantages. Here are the three oil types and what they offer:

  • Conventional


Conventional or mineral oils are extracted from natural petroleum compounds. They are usually a great choice for gasoline engines and have been the preferred oil type by many since a long time.

But while mineral oils are cheap and can give enough lubrication to your engine, other types offer better overall engine protection against wear and tear.

  • Synthetic


As the name suggests, synthetic oils are lab-made lubricants, using chemical materials like petrol. They offer better performance in engine protection due to the artificially formulated additives they contain.

Synthetic oils are best used in frequently used engines such as those in lawn mowers as they resist wear and tear and higher temperatures well.

  • Blended


Blended oils are mixtures of mineral and synthetic oil base stocks that allow for added protection and performance absent in using conventional oils alone.

Among the benefits of using this certain type of oil are better emission and fuel economy, and longer engine service life. Additionally, blended oils are a less expensive alternative to true synthetic oils while still containing most of their benefits.

3. Recommended engine oil products

While there are plenty of choices of lubricants in the market, randomly picking one for your 23 HP Kawasaki engine is not the right way to go. To be safe, pick Kawasaki-labeled products for the best engine compatibility.

You can also check out our oil recommendations below:


  1. Kawasaki ATV/UTV 10W-40 Motor Oil
  2. Kawasaki K-Tech Engine Oil
  3. Kawasaki SAE20W-50 4-cycle Engine oil
  4. Valvoline High-mileage Synthetic Blend Engine Oil
  5. AmazonBasics High-mileage Engine oil

Factors to Consider When Choosing Oil

Decisions regarding what oil type and brand to use for your small engine should be made on important factors such as engine type and climate conditions to guarantee the performance of your motor.

  • Engine type


Different engine types means different performance and specifications, hence different oil requirements.

Four-stroke engines are commonly found in ride-on mowers while two-stroke small engines are commonly used in push mowers along some other smaller garden equipment.

Heavier equipment are supposed to work on more demanding backyard work so they will normally require a specific oil suitable for heavy-duty work than smaller or lighter motors.

  • Climate conditions


In this article’s context, climate conditions refer primarily to the environment temperature you are working in. The viscosity grades of oils are directly influenced by temperature. Some oils work better in a wider temperature range while others are specifically made for colder conditions.

Ideally, you should use oils that work well with most conditions like the 10W-40 and 10W-30 oils. But if you live in a colder region, it is best to switch to lubricants with oil grades more suitable for colder temperatures.


Lawnmowers are regarded as workhorses– they are reliable and practical investments that will make your lawn duties a lot more convenient. So you should constantly keep them in shape and in peak working conditions through proper oil service maintenance.

Ensuring you use the right 23 HP Kawasaki engine oil type guarantees better protection against wear and tear and sudden temperature changes at work. Following the manufacturer’s recommendations is the best way of knowing what oil to use.

Always remember that oil is the lifeblood of any engine so remember to change your oil every once in a while.

5/5 - (1 vote)
Categories Oil

Magazine Latest Posts

Who Makes Quaker State Oil

Who Makes Quaker State Oil?

Have you heard about the Quaker State oil products? If yes, you might have thought ...


Is Marvel Mystery Oil Good?

  When was the last time you used a fuel or oil additive? If you ...

Predator 212 Oil Type & Capacity

Predator 212 Oil Type & Capacity

Whether used for go-karting or generating, choosing the right Predator 212 oil type & capacity ...

Quaker State vs Pennzoil

Quaker State vs Pennzoil: A Quick Comparsion

Quaker State Vs Pennzoil? Choosing the right engine oil from the same brand can be ...

How Tight Should an Oil Filter Be

How Tight Should an Oil Filter Be? How to Tighten Properly?

An oil filter is essential in maintaining the overall condition of your car engine, as ...

Is Havoline Good Oil

Is Havoline Good Oil? (Pros & Cons, Performance and More)

Havoline is a popular motor oil brand with great products that offer adequate engine protection. ...