Table of Contents
We hope you love the products we recommend and just so you know that as an Amazon Associate & J&P Cycles affiliate, MyEngineNeeds may earn from qualifying purchases.
Jet skis are fun recreational high-speed watercrafts. They’re powered by either a 2 stroke or 4 stroke engine that must be maintained by a high-quality lubricant. If you have a 4-stroke engine then you’ll want to continue reading.
Today we are going to be reviewing our top selections of 4 stroke jet ski oils. These reviews will give you in-depth specifications about the oils so you know exactly how these formulas are made and what they can do for you.
Every oil mentioned in the following list is a high-quality lubricant that prolongs the life of your Jet ski engine and optimizes its performance. So without further ado, let’s start with the first product on our list which is the Kawasaki 4-cycle Oil.
Keen to Hit the Water – Check Availability Here
1. Kawasaki 4 Cycle Oil 2006-2015 Kawasaki Jet Ski STX-15F Maintenance Kit
Kawasaki is a top manufacturer of high speed on and off-road motorcycles & watercrafts. They also make impressive 4 cycle oil specifically designed for its jet ski engines. Find out why we’ve put the Kawasaki 4 cycle engine oil at the top of our list in the below review.
- Meets and exceeds NMMA FC-W oil specifications
- Prevents engine corrosion and sludge build-up
- It’s a marine-grade jet ski oil
- Maintains its viscosity in high and low temperatures
- Lubricates all engine components effectively
- Comes with a complete maintenance kit
- Poor packaging
- Only designed for Kawasaki jet ski engines
- The bottles of oil can’t be bought individually
Kawasaki engines are robust and they provide optimal performance for jet skis. In order to maintain these high quality constructed engines, you need a lubricant that has a specific formula to maintain their internal components.
The Kawasaki oil is a 10W-40 lubricant that contains zinc additives to prevent corrosion inside engine parts. The formula is designed to clean your jet ski engine and prevent contaminants from entering the unit. This formula contains marine-grade additives that have anti-corrosion features. These will protect your engine parts from oxidizing in saltwater and freshwater environments.
Kawasaki’s 4 cycle jet ski oil keeps its viscosity even in high temperatures so it’s always protecting your watercraft’s engine. The Kawasaki 4 cycle engine oil meets NMMA FC-W oil specifications. It’s also semi-synthetic oil that is designed for high-speed motor engines.
What We Like
We love that the Kawasaki engine oil comes in a complete maintenance kit that includes 5 quarts of the lubricant, 4 spark plugs and an oil filter. It also comes with a convenient funnel that prevents spillage when you pour the oil into your jet ski.
The maintenance kit has OEM (Original Equipment Manufacturer) specifications so there won’t be problems with fitting the spark plugs or oil filter into your jet ski.
Newer 4 stroke engines can be a bit tricky to maintain with the correct oil and OEM components. That’s why Kawasaki put their maintenance kit together so that people will have access to the correct products specifically designed for their jet ski engines.
What We Don’t Like
The Kawasaki 4 cycle jet ski engine oil is specifically formulated for PWCs with motors of the same brand. So you may not be able to use the lubricant for any other motor model or brand. This oil can’t be used in engines manufactured before 2006. If you do, it can cause major damage to the unit.
Kawasaki manufactures high performance vehicles but this oil isn’t designed for land automobiles. The formula is specifically formulated for jet skis because of the additives it contains and the viscosity of the oil.
Although this oil is designed for jet skis Kawasaki does offer lubricants for high performance motor vehicles and motorbikes. So you’re able to have the same quality from a trusted brand for all your engine powered vehicles and watercrafts.
2. Yamalube 4 Cycle Oil with Yamaha OEM Oil Change Kit FX HO SHO SVHO FZR FZS VXR VXS GP1800 – LUB-WTRCG-KT-10
- Yamalube OEM Factory 4 Stroke All Purpose Oil
- Performance-Blend is Suitable for use in Motorcycles, ATVs, Side-by-Side Vehicles, and Scooters
The second product feature on our list is the Yamalube 4 cycle oil from Yamaha. The Yamaha brand is also responsible for manufacturing high performance vehicles such as motorcycles, jet skis motor vehicle engines. The brand also manufactures musical instruments such as acoustic and electric guitars as well as amplifiers & pianos.
The diversification of the Yamaha company truly stands testament to the ingenuity of its R & D (Research and development) department especially for its engine lubricants. So let’s go through the highlights of the Yamalube 4 cycle engine oil.
- Keeps its viscosity
- It’s a multipurpose engine oil
- Protects your jet ski engine from harsh marine environments
- OEM product
- It’s an expensive engine oil
- The oil change kit doesn’t come with spark plugs
Yamalube is an OEM factory multipurpose engine oil that can be used in a variety of vehicles, motorbikes, scooters and of course watercrafts such as jet skies. This oil is an SAE 10W-40 grade engine oil that keeps its viscosity in high or low temperatures.
The Yamalube is a mineral oil that lubricates all the components within an engine to prevent corrosion. Yamalube has additives that clean out the engine components and prevent contaminants from entering the unit.
This jet ski engine oil from Yamaha meets and exceeds JASO MA requirements so you know it will optimize the speed of your watercraft by delivering the desired friction performance. It’s designed for wet clutch systems as well as land recreational vehicles.
The Yamalube engine oil for jet skis is marine-graded so you know your engine will be protected from saltwater damage. This lubricant protects high performance engines for longer and so you will only need to change the oil every 100,000 miles.
What We Like
Yamaha also manufactures a complete maintenance kit which includes 4 quarts of Yamalube 4 stroke 10W-40. The kit has an OEM 69J oil filter that will fit perfectly inside your jet ski. The maintenance kit fits various models of jet boats, cars and motorbikes.
Using the Yamaha OEM oil change kit, it will take you 10 minutes to complete the job because of its OEM specifications. We love that you don’t have to stress about buying each product separately because that can cost you more money. Buying the kit is highly economical.
What’s more, the Yamalube bottles have small-cap openings so that it’s easy to pour the liquid into your jet ski. Another aspect that we like about the Yamalube oil is that you only have to change the lubricant after 50 hours of jet ski use.
The Yamalube is designed for heavy-duty use in harsh marine environments so your engine is guaranteed to be cleaned and protected while you ski through ocean waters.
What We Don’t Like
Yamalube is no doubt an excellent motor oil for 4 stroke engines but the price tag may be a bit high. But remember, it’s a high-quality lubricant that offers better value for money because of its versatility. Even though the price is high you can use this engine oil for your vehicles as well as your motorbikes and watercrafts.
3. Yamaha Watercraft 3 Cylinder TR-1 Oil Change Kit – LUB-3WTRC-KT-20 VX, EX, V1, EXR
- Kit includes 4 Quarts of Yamalube 4W 10W40 engine oil and 1 5GH oil filter.
- Fits: Yamaha Waverunners and Jet Boats using Yamaha's 1049cc 3 Cylinder TR-1 Marine Engine (1 Kit Services One Engine)
Next up is another Yamaha engine oil that may be the product you’re looking for to improve the performance of your jet ski. Yamaha engine oils are all thoroughly tested to meet the demands of high-performance engines.
- Easy to use the oil change kit
- It’s an OEM product
- The oil keeps its viscosity
- Formulated for high revving PWC
- Meets and exceeds JASO MA requirements
- Prolongs the life of your jet ski engine
- Can only be used in a TR-1 engine
- You’ll need to purchase two products for duel engines
The Yamaha watercraft 3 cylinder TR-1 oil is specifically formulated for 4 stroke WaveRunner engines made from the same brand. This engine oil has a viscosity grade of 10W-40. It’s a mineral oil which means it’s designed for high performance motors.
This Yamaha watercraft engine lubricant is for high revving Yamaha boat engines. The oil has high-quality anti-corrosion and anti-wear additives to prolong the life of your jet ski engine in harsh marine environments.
The Yamaha oil also has compounds in it that will clean all the mechanisms within your jet ski engine to prevent muck build up. Since it’s a marine-grade oil it will protect your jet ski engine from sand and other debris found in ocean waters.
Yamaha’s marine-grade 3 cylinder jet ski oil meets and exceeds JASO MA requirements which means it will enhance wet clutch performance.
What We Like
We love that you can purchase the Yamaha high quality 3 cylinder jet ski lubricants in an OEM oil change kit. In this kit, you will receive four bottles of Yamaha 3 cylinder jet ski TR-1 jet ski oil each with 32oz capacity. You’ll also receive one OEM Yamaha jet ski engine oil filter with part number 5GH-13440-50-00.
This Yamaha oil change kit also comes with drain seals and o-rings. Since this is an OEM kit, the filter, o-rings and drain seals will fit perfectly onto your Yamaha jet ski’s parts. What’s more, is that it’s easy to do the oil change yourself so you don’t need a professional to assist you.
The Yamaha oil change kit is specifically manufactured for TR-1 engines which include 2017-Current Yamaha SX210 and AR210 models.
What We Don’t Like
Unfortunately, the Yamaha 3 cylinder oil is not a multipurpose oil like the Yamalube product. This Yamaha oil is specifically formulated for TR-1 engines.
It’s important that you use the correct oil in TR-1 engines. Why? Because they’re made with specific parts that require lubricants with specialized additives such as anti-corrosion and detergents to keep it clean.
But as mentioned before Yamaha does produce other types of lubricants formulated for all types of PWC engines as well as motor vehicles and motorbikes.
The only aspect to consider is the price of the oil because it’s more expensive than other marine grade lubricants. The superior choice would be to purchase the oil changing kit because you’ll get four bottles of the lubricant instead of one for a better price.
4. Suzuki ECSTAR V7000 10W-40 Marine 4-Stroke Engine Oil, 2 Gal with 16510-96J10 Oil Filter
Suzuki is another manufacturer on our list that produces high performance motorcycles, automobiles and PWC engines. The company also produces its own high-quality engine oils to meet the requirements of the vehicles, motorbikes and jet ski motors it manufactures.
- Has an FW-C certification by the NMMA
- OEM product
- High-quality anti-corrosion additives
- Designed for high performance motors
- The kit doesn’t include spark plugs or o-rings
- Designed only for Suzuki motors
Engines need high-performance lubricating oils to improve their performance and protect internal parts from contaminants. But not all engine oils are the same. Fortunately, Suzuki produces the finest quality engine oil for its engines
The Suzuki ECSTAR marine 4 stroke oil is exactly what you need for your jet ski motor. This lubricant has an optimal blend of oils that are specifically formulated for a robust Suzuki engine. The viscosity grade on this oil is 10W-40 which means it has a thicker consistency that won’t thin out in high temperatures.
A higher grade viscosity is designed for high performance engines that create more friction. This oil also has additives formulated to protect the internal components of your engine. It has anti-wear protection, piston cleansing power and anti-corrosion properties.
The Suzuki ECSTAR marine 4 stroke oil also improves fuel efficiency which means it is highly economical.
What We Like
Suzuki manufactures complete oil maintenance kits for jet ski engines. This saves you time and money. You won’t have to buy all the parts you need for an oil change because they all come in one package.
What we like about the Suzuki ECSRAR 4 stroke engine oil kit is that it’s an OEM product which means it will be easy for you to fit the filter onto your PWC. The kit comes with four bottles of 10W-40 4 stroke engine oil, each with a one-gallon capacity.
You will also receive an OEM filter with part number 16510-96J10. This filter is robust and will protect your engine from harsh contaminants.
What We Don’t Like
The oil maintenance kit from Suzuki only comes with a filter and the oil. So you’ll have to purchase spark plugs separately. Make sure you use specific watercraft sparkplugs for your PWC. Luckily Suzuki does manufacture OEM sparkplugs for watercrafts.
Another aspect that you may find is a disadvantage is that this engine oil and kit are only manufactured for engines made by Suzuki. And since it’s a specific brand of oil it’s more expensive. But purchasing the kit will be better value for money because you’ll get four gallons of oil and a filter for the price.
Frequently Asked Questions
What oil must you use for an outboard motor?
You must use marine-grade semi-synthetic, mineral or full synthetic oil with at least a 10W-40 rating. It must also be SAE approved and it should meet NMMA FC-W requirements.
How often should you change the oil on an outboard motor?
If your jet ski engine is new you should change the oil after 20 hours of using it. After the second oil change, it can be after every 100 hours of use.
What is the difference between an inboard and an outboard motor?
The names of the motors are derived from the way they are attached to a boat. The inboard motor is integrated inside a jet ski or boat’s hull. An outboard motor is mounted on the outside of a jet ski’s hull.
Can you use regular oil for a jet ski engine?
Jet ski oils are made from special additives that prevent oxidization in engine parts from saltwater and freshwater environments. They also have a specific viscosity. You must look at the specs of your engine and use oil that’s compatible with the unit. The best jet ski oil to use is Kawasaki’s 4 cycle engine lubricant.
How many hours will a 4 stroke Jet Ski Last?
A jet ski that has an integrated 4 stroke engine will last up to 350 hours and a 2 stroke unit will last 150 hours. But there are many ways to prolong the life of your jet ski engine and one of them is using the correct oil for your PWC (Personal Water Craft).
We hope that our top four jet ski oils helped you with your buying decision. To make it easier for you, we recommend purchasing the Yamalube oil because of its multipurpose formula and high-grade synthetic additives. It will prolong the life of your engine by keeping it clean and protecting the internal components from the harsh marine environment.
Last update on 2021-05-09 / Affiliate links / Images from Amazon Product Advertising API