Premix oil for 2 stroke

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Use our 2-Cycle/2-Stroke Ratio Chart to mix the proper Gasoline-Oil Blend

Many string trimmers, chain saws, polesaws, brushcutters and leaf blowers run with a 2-stroke engine. Two-stroke (or 2-cycle) engines require a mixture of fuel and oil be added to the fuel tank. This mixture results in both engine combustion and lubrication. Operating a 2-Stroke engine on gasoline alone will result in engine failure.

What is the gas-to-oil mix ratio for a two-cycle engine hand-held equipment?

First, you will need to identify when your equipment was manufactured. The year of manufacture is usually found near the model number.

For two-cycle handheld equipment manufactured prior to 2003: 

Use a 32:1 gasoline to oil ratio. One gallon of gasoline combined with 4 oz of two-cycle engine oil. If you are in the state of California, use a 2-cycle oil mix ratio of 40:1.

For two-cycle handheld equipment manufactured after 2002: 

Use a 40:1 two-cycle oil mix ratio. One gallon of gasoline combined with 3.2 oz of two-cycle engine oil.

Unsure of the age of your equipment?

Use the 40:1 mixture. All of our handheld two-cycle units can operate on a 40:1 two-cycle oil mix ratio.

Refer to the chart below to make sure you're using the correct 2-cycle/2-stroke fuel and oil mixture:

Mixing Ratio (Gas:Oil)

Volume of Gasoline

Volume of 2-Cycle Oil

32:1 1 US gal. (128 oz) 4 oz.
40:1 1 US gal. (128 oz) 3.2 oz. 
50:1 1 US gal. (128 oz) 2.6 oz.
32:1 1 liter 31.25 ml
40:1 1 liter 25 ml
50:1 1 liter 20 ml

Mixing the 2-cycle/2-Stroke oil and fuel mixture

Pour the 2-Cycle oil  to an empty gasoline can before adding one gallon of fresh gasoline into the can. No additional agitation is necessary. If the mixture may be stored for more than 30 days, include a fuel stabilizer to the gasoline before mixing to help increase its shelf life.

Label the gas can containing the 2-cycle oil mixture, to prevent accidentally using it in other equipment, such as your lawn mower.

Note: Never use gasoline with an ethanol content higher than 10%. Ethanol attracts moisture when exposed to air. After absorbing less than an ounce of water, the 2-cycle gasoline and oil mixture will start to separate and if used, result in damage to your engine's carburetor.

Can you use a motorcycle injector 2 stroke oil as a premix 2T oil (and vice versa)?

Premix oil for 2 stroke

Differences between 2 stroke premix and injector systems…..

What is a 2T premix system (also known as a Tank Mix system)?
A 2 stroke premix system is where you have to mix the 2 stroke oil and the petrol before you use it (normally in a container or in the fuel tank).

What is a 2T injector system?
A 2 stroke injector system is where you have a separate 2 stroke oil bottle on the bike that you fill with the oil (the system then ‘injects’ the oil into the petrol as it goes to the engine).

Can I use a motorcycle 2 stroke injection oil in a tank mix / premix system?

YES, you can use a 2T injector oil as a premix.
BUT, a specifically designed Pre Mix 2T oil will protect and lubricate your engine better.

Can I use a 2T premix oil in a 2 stroke injector system?

NO, it’s not advisable to use a 2 stroke premix oil in a bike or scooter with a 2T injection system as a premix oil won’t lubricate the engine properly.

Explanation…..
2 Stroke injector oils are made thinner then 2T premix oils with a bit of kerosene (which also lowers the flash point of the oil).
This means injector oils are more likely to be picked up by the fuel/air mixture as it flows through the port and into the engine and will mix with the fuel and ignite in the engine easier.

A 2 stroke premix oil should have no kerosene in it (so it’s thicker than an injector 2T oil) and sometimes uses a bigger molecule base oil which makes it harder to mix with the fuel. This isn’t a problem in a premix system as the petrol and 2 stroke oil are mixed beforehand, but in an injector system a premix oil wouldn’t mix with the fuel/air vapor properly and wouldn’t protect the engine.

Premix oil for 2 stroke

It seemed like a good idea at the time……….

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What is the premix ratio for 2

Use a 40:1 two-cycle oil mix ratio. One gallon of gasoline combined with 3.2 oz of two-cycle engine oil.

What oil can I use for 2

It's better to put 10w 40 in a 2-stroke engine than to use 10w 30. The main difference is the oils' viscosity. Any 10w 40 oil stays thicker than a 10w 30 oil, so as your engine heats up with use, the 10w 40 continues to lubricate. Using 10w 40 oil ensures your garden machine starts easily and runs longer.

What is the best 2

Best 2 Stroke Oils Reviews.
Briggs & Stratton 2-Cycle Oil. Check Price On Walmart. ... .
Pennzoil Marine XLF Engine Oil. ... .
Husqvarna 2 Stroke Oil. ... .
Klotz Super TechniPlate Synthetic 2-stroke Premix Oil. ... .
Lucas 2-Cycle Oil. ... .
Maxima 2-Stroke Oil. ... .
Quicksilver Premium Plus Outboard Oil. ... .
Motul 800 2T Factory Line 2 Stroke Engine Oil..

What kind of oil do you use for premix?

Premixing is the addition of a 2 stroke oil (also known as 2 cycle or 2T oil) in to the fuel supply to aid with lubrication of the engine. In the case of the rotary engine this helps with lubrication of all the seals that are otherwise only lubricated via the oil injectors.