best 2 stroke outboard oil

5 Best Two Stroke Outboard Oil For Boats 2018

The two stroke engine differs from the four stroke engine as there is only two movements, which are up and down instead of four. The two stroke engine produces its power with two movements of the piston during one crankshaft revolution. A four stroke engine requires four movements in order to produce power.

As a two stroke engine power comes from the crankcase, oil must be mixed with the gasoline for lubrication. The result of the mixture means oil is also burnt that increases the exhaust emissions. This is why two stroke oil requires completely different oil to four stroke outboard oil.

The best two stroke oil for your outboard engine is Pennzoil 550022757, which is designed to keep your engine running clean and mixes easily with fuel for premix.

Best 2 Stroke Boat Engine Oil

2 Stroke OilOur RatingPrice
Pennzoil 5500227574.9Check Price
Royal Purple 013114.8Check Price
Quicksilver 27Q014.8Check Price
Evinrude 7643574.7Check Price
Yamalube LUB4.7Check Price

Two stroke engines are desirable due to there bulletproof design and their responsiveness upon acceleration. Prices of the two stroke engines are gradually going up and will continue to do so due to manufacturers no longer producing them.

Two stroke oil is designed to be mixed with the oil and burn, therefore its not advised to use any other oil such as 4 stroke or motor oil.

When buying two stroke oil, ensure that the oil is TC-W3 rated. This is an industry marine standard (NNMA) that certifies the oil provides adequate lubrication and engine protection. You will notice a distinctive TC-W3 logo on the containers of the two stroke oil.

You will no longer be able to buy a two stroke engine from new because of the emissions. Therefore its even more important to use the correct oil in your current two stroke engines to increase the lifespan. Below is a list of the best oil for your 2 stroke outboard in order to expand the engines lifespan.

Pennzoil 550022757 2 Stroke Marine Engine Oil


Pennzoil are a popular two stroke oil brand in the boating community for good reason. Their “Premium Plus” synthetic blend formula provides additional engine protection in the for of prevention of piston scuffing and ring sticking. The advanced oil formula also keeps the exhaust ports and spark plugs clean for efficient engine running.

The oil is compatible with the majority of outboard brands such as Johnson, Evinrude, Mercury Marine, Yamaha, Suzuki, Nissan, Force/US Marine, Mariner and Sears.

Compared to other “branded” two stroke oils, the Pennzoil 550022757 provides great value for money and does the job of lubricating just as well. Highly recommend this marine engine oil if you are looking for a premium oil but at a reasonable price.

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Royal Purple 01311 Performance 2 Stroke Synthetic Oil


Royal Purple are known for their performance oils and their 2 stroke version is the most popular. An increase of horsepower and fuel economy are just some of the benefits but more importantly this oil reduces heat, emissions and wear of the engine.

The synthetic solvency has been designed to keep the exhaust ports and spark plugs clean as well as increasing the films strength for max protection.

This oil is also usable within other two stroke engines such as a lawnmower or motor cross bike, which is good to know for any leftovers. If you are after a performance related two stroke oil, the Royal Purple synthetic oil should be in your shopping cart.

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Quicksilver 27Q01 2 Stroke Synthetic Outboard Oil


Quicksilver’s marine oil has a superior lubrication formula that claims to be the cleanest burning oil on the market. The Quicksilver 27Q01 oil provides warranty protection for Mercury, Mariner, Force and Sport Jet and M2 Jet Drive 2-cycle engines for your peace of mind.

The 2 stroke synthetic blend has been designed to for high power outboards. Therefore the higher concentration of additives provide the additional lubrication and solvency to ensure optimum running on all 2 stroke engines.

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Evinrude Johnson 764357 XD100 2 Stroke Marine Oil


Evinrude are a premium outboard brand and their engine oil is one of the best available. The XD100 Synthetic formula provides added protection against friction of the piston against the cylinder wall. The additional detergent in the oil is used aid the removal of the combustion deposits of a two stroke engine.

The Evinrude Johnson 764357 claims to burn cleaner than other competitors thus providing a smokeless, ashless and odorless engine. If you are looking to reduce the smoke of your two stroke engine, the XD100 solves this problem.

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Yamalube LUB-2STRK-M1-04 2 Stroke Oil


Yamalube is the motor oil produced by Yamaha themselves that meet the TC-W3 specification. With performance in mind, Yamaha provides great value for money with additional additives to increase throttle response and overall performance.

Using this oil will significantly reduce excess smoke on neglected engines that have been left for years on end.

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Why Use Synthetic Oil in a Two Stroke?

Synthetic oil has been refined to its best possible form and provides many benefits for 2 stroke engines. The increase in combustion, extra lubrication and a cleaner engine are just some of the benefits from using synthetic oil. When working on a two stroke engine that has been using synthetic oil, you will be able to notice straight away the cleanness of every nut, bolt and piston.

Smoke on Starting a Two Stroke Engine

Upon starting a two stroke engine from cold, there will often be a cloud of smoke and a distinctive smell. This is nothing to be worried about and is normal of the two stroke boat engine. The smoke is caused from a build up of two stroke oil that has settled upon the bottom of the crankshaft area where the engine was sitting and the fuel has been burnt on combustion.

What is the Best 2 Stroke Oil for my Boat?

The importance of lubrication within a two stroke engine is to lubricate the ends of the crankshaft as they move up and down the cylinder walls. The fuel, oil and air mixture then lubricates the cylinder walls with a “film”. This is a big job and is important to have the best 2 stroke oil for your boat to carry this process out.

In my opinion the best two stroke outboard oil is the Pennzoil 550022757. Unless you are matching the outboard brand with the brand of oil, the Pennzoil provides great value for money. Its a premium oil that is highly rated within the boating world globally.

2 thoughts on “5 Best Two Stroke Outboard Oil For Boats 2018

    1. Kawasaki 2 stroke oil is designed for smaller jet ski engines not for outboard. If you will notice, Yamalube has outboard oil, and another oil for PWCs

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