
The resultant mix is referred to as premix or petroil. This oil is ultimately burned along with the fuel as a total-loss oiling system. This results in increased exhaust emissions, sometimes with excess smoke and/or a distinctive odor.
What is premixing and who needs it?
Premixing is the addition of sacrificial lubricant to the fuel for the engine. Well that sure sounds antiseptic. What it is to the layman is adding oil to the gas to reduce wear. What we need to explore is defining who needs to premix, how much to add, and what type oil. Who needs to premix falls into three categories.
What is premixing in a car?
Let’s continue with defining premixing. Premixing is the addition of sacrificial lubricant to the fuel for the engine. Well that sure sounds antiseptic. What it is to the layman is adding oil to the gas to reduce wear. What we need to explore is defining who needs to premix, how much to add, and what type oil.
What kind of oil do you use in a premix?
There are three things to remember about premix oil. One is to use a premix oil specifically. “Old School” guys will remember using straight 30 weight motor oil as a premix.
What are the components of premix?
Premix includes Fortificants (powdered vitamins and minerals), Excipients (carriers, fillers) and free-flow agent. When vitamins, minerals, and functional ingredients are to be added to a food product.

Is premixed fuel better?
With just the right amounts of premium fuel, oil, and additives, pre-mixed fuel is designed to help you get the most out of your two-stroke equipment. This means reliable starting, enhanced throttle response, better lubrication, and overall exceptional performance.
Is premix better than oil injection?
Many riders say that premix is the only way to go. It's far safer as you don't have to be afraid of an oil-injection system failure. It also gives you control over the mix ratio, a key advantage for racers and stand-up riders. On top of that, the lack of an oil-injection system also means easier maintenance.
Can you use injector oil for premix?
If you choose to premix your oil you can still use some of the best oils like Silverfire Smokeless 2T Injector Oil. While Silverfire Smokeless 2t Injector Oil can be run in your oil injection system, it can also be premixed into your gasoline at the correct ratio for your motor.
How do you make premix fuel?
0:000:59How to Mix Oil and Gas: The 2-Cycle Engine Fuel Recipe - YouTubeYouTubeStart of suggested clipEnd of suggested clipOut the oil and pour it in your gas. Can along with 1 gallon of fresh regular unleaded fuel thenMoreOut the oil and pour it in your gas. Can along with 1 gallon of fresh regular unleaded fuel then swirl it up as you can see we're mixing in the gas can never in the fuel tank.
What is the best 2 stroke injection oil?
Best 2 Stroke Oils ReviewsBriggs & Stratton 2-Cycle Oil.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.More items...•
What is 2 stroke oil injection?
0:020:412 Stroke Oil Injection - YouTubeYouTubeStart of suggested clipEnd of suggested clipWhere it will mix with the fuel and lubricate the internal engine parts the pump delivers theMoreWhere it will mix with the fuel and lubricate the internal engine parts the pump delivers the correct amount of oil for the engine speed and the throttle setting.
Does it matter what 2-stroke oil I use?
A. No matter hold old, 2-cycle engines perform better and longer with oils specifically designed for that use. 2-cycle oils will be consumed during combustion in the piston chamber. Therefore, must be formulated with specific additive chemistry and base oils.
Can I mix synthetic and regular 2-cycle oil?
The short answer is… yes. If you don't have a choice, adding synthetic oil to regular oil can help you out in a pinch.
Can you mix different types of 2-stroke oil?
Our answer: All types of two-stroke injector oils can be mixed. There will not be any compatibility issues. All brands of synthetic, semi-synthetic and conventional 2-cycle oils are compatible.
What is premix fuel?
The refinery produces a purpose-made fuel known as premix for fisher folks who use outboard motors. It is a blend of Marine Mix lubricants and gasoline. Premix is suitable for two-stroke engines.
How much oil do I add to 5 Litres of petrol?
If you can't find the specific ratio for your mix, 40:1 is accepted as an average ratio for two-stroke engines. This is 125mls of two stroke oil to 5L of fuel.
Can you use regular oil to mix with gas?
Never mix the oil and gas directly in the fuel tank. Always mix in a separate, leak-proof container that's slightly larger than the volume of gas and oil required, and make sure the container is free of dirt or any other materials.
Are oil injected outboards good?
Oil injection is a nice convenience and offers some performance advantages over a straight 50:1 ratio (or as recommended by your Outboard Manufacturer) especially if trolling for extended periods. Different methods of providing automatic lubrication have been developed over the years but they all have one problem.
How does Yamaha oil injection work?
0:156:48How 2-Stroke OIL SYSTEMS Work! - YouTubeYouTubeStart of suggested clipEnd of suggested clipOil to the different sections of the engine. Some go to the reeds. And sometimes it sends the oilMoreOil to the different sections of the engine. Some go to the reeds. And sometimes it sends the oil straight to the cylinders on other models the oil is mixed in before the carburetors.
Is oil injected 4 stroke?
Four-stroke engines are lubricated by oil held in an oil sump. The oil is distributed through the engine by splash lubrication or a pressurized lubrication pump system; these systems may be used alone or together. Splash lubrication is achieved by partly submerging the crankshaft in the oil sump.
How do I know if my outboard is oil injected?
The only way to check the OMC system is to mark the level on the tank and see if it moves. Also if it is smoking, its oiling. If you ever disassembled a VRO pump and seen how it works, you would be able to see that the pump can't pump fuel without pumping oil also.
What is premixing in oil?
Let’s continue with defining premixing. Premixing is the addition of sacrificial lubricant to the fuel for the engine. Well that sure sounds antiseptic. What it is to the layman is adding oil to the gas to reduce wear. What we need to explore is defining who needs to premix, how much to add, and what type oil.
What is an Apex seal?
Apex seals have a unique place in the world of internal combustion engines. Rotaries operate like a two stroke engine. Every time a face approaches the spark plugs, combustion occurs. Contrast this with a conventional 4-cycle engine where the exhaust/intake stroke is cooler and lowers the heat load on the parts.
What oil is used for alcohol?
When we are talking about alcohol, we are making recommendations for when the fuel is over 50% alcohol. Below that and the gasoline is still the majority and premix rules are still to base it on gasoline. Alcohol truly does use a different type oil. Why wouldn’t it, since it’s different for everything else as well? The lubricity of alcohol is much lower than gasoline. Even 4-cycle piston engine folks use a little top cylinder lubrication on high output alcohol applications. The standard premix of the alcohol world is castor oil. Mind you, we did not say Castrol. Castrol is a brand and castor oil is a type of oil. Castor oil is a vegetable oil from the castor bean. It has characteristics that make it the ideal oil for alcohol use. The most popular product is Klotz BeNol. It’s well recognized and not unreasonably priced. It’s sold in various quantities from half pints to quarts to gallons. Spoiler alert: This oil has a funky smell. If you’ve messed with nitro burning RC cars and airplanes, then you’ll recognize it immediately. Keep in mind, this oil is hard to find in brick and mortar stores. If you’re running alcohol consistently, you’ll need a hefty quantity of this around so you never run out.
What year did Mazda start using oil injection?
1989-91 RX-7’s. This was Mazda’s first electronically metered oil injection cars. The volume of oil injection dropped to about 25% of the preceding 1986-88 models. The results were shorter engine life, especially the automatic transmission models.
Is premixing necessary for everyone?
We hope this helps to clear the air (pun intended). Premixing is not necessary for everyone, but important enough for many that a good explanation was needed. A couple of pearls of wisdom will follow to help.
Do you need to premix oil for mechanical oil metering?
Mechanical oil metering cars typically DO NOT need to premix (1988 cars and older). Their system is reliable and adjustable to optimize the rate for the engine. Keep in mind, the systems are 25+ years old and are common to be leaking so they may need to be serviced. Beyond that, they are effective.
Safer
There’s no question that the main advantage of bypassing the oil-injection system and using premix is that it ensures that your engine is lubricated at all times.
Control Over the Mix Ratio
If your jet ski is oil injected, it means the mix ratio of the fuel depends on the oil pump.
Easier Maintenance
Using premix also results in easier maintenance as you don’t have to check and work on the oil-injection system.
Convenience
Let’s face it, mixing gas with oil in a separate gas can before you pour it into the tank is always a big hassle.
Easier to Refuel
If your jet ski runs on premix, it means that you have to manually mix the fuel every time before you refuel. While this may be fine if you play around near the shore, it can be a huge hassle on long tours.
Variable Mix Ratio
As a rule of thumb, 2-stroke jet skis were manufactured with two different oil pump designs.
Oil Efficiency
The key advantage of a variable oil-injection pump is that it provides more lubrication at higher RPMs while it keeps the fuel lean while idling around.
What kind of oil did the Son 2 strokes use?
Here is some historical background Son. Originally all 2-strokes ran on pre-mix. And the oil was a petroleum based pre-mix rated oil, that never really burned clean. They also came equipped with atrocious ignitions that had so little electrical energy, they could barely jump a 0.020” sparkplug gap.
What does "leaner oil" mean?
One final factoid to really confuse you, a leaner oil ratio = a richer gas to air ratio. That means the more oil you add to your gas, the hotter the engine runs because of the leaner jetting. As you have noticed Son, you are not getting my advice; I’m too smart for that. All I will give you are “Just the facts”!
Can you mix gas with oil?
If you are intent on using pre-mix then you can mix your gas with oil at from 32:1 to as lean as some yahoo claimed he runs his 2-stroke! No matter what the pre-mix ratio, you will feed your Blaster’s engine too much oil at idle and a bit lean at full throttle.
What are the advantages of pre-mixing?
The advantages of pre-mixing are: As long as your Outboard is running it's receiving lubrication (pre-mixed in the fuel). No separate oil tank or lines to worry about. Knowing your Outboard will receive full lubrication at high speeds and while cruising. The downside to Pre-mixing is:
Do you need oil to change to premix fuel?
On this initial switch-over to premixed fuel, you must add enough oil to treat the full capacity of the tank!
Can you run 2 stroke outboards on pre-mixed oil?
Older 2 Stroke Outboards have been running just fine on pre-mixed fuel and oil since the Outboard was invented. Oil injection is a nice convenience and offers some performance advantages over a straight 50:1 ratio (or as recommended by your Outboard Manufacturer) especially if trolling for extended periods. Different methods of providing automatic lubrication have been developed over the years but they all have one problem. They can fail. Once the warranty runs out on your Outboard you're on your own if your Outboard suffers damage from lack of lubrication. One way to prevent this from happening is to discontinue use of the oil injection system and switch back to pre-mixing the oil with your fuel. The advantages of pre-mixing are:
Can Evinrude outboards be switched to premixed fuel?
Note: Evinru de E-Tec Outboards should notbe switched to premixed fuel because of oiling requirements of the digital fuel injectors on this Outboard. Check back with us after your E-Tec warranty expires to see if there is a modification to the EMM (Engine Management Module) to allow pre-mixing fuel on this Outboard.
IDEMITSU PREMIX FUEL LUBE 4 QUARTS
Idemitsu 4 Quarts Oil Premix Fuel Lube Also available in these quantities:
Premix EZ Quick Kit
2 (16 oz) Measuring Bottles, 1 Funnel, Small Carrying Case, 1 Shop Towel You can order Idemitsu Premix here:
What is synthetic 2 stroke oil?
AMSOIL Synthetic 2-Stroke Injector Oil is a value-priced synthetic that offers big features at a better price than many conventional and semi-syn 2-cycle oils. This product offers clean burning performance, low-smoke and exceptional wear protection. Synthetic 2-Stroke Injector Oil is also versatile as it can be used in snowmobiles or outboard engines. Ideal for either premix or oil injection systems.
Can you use 2 cycle oil on a snowmobile?
When using a modern 2-cycle oil, go with the ratio suggested on the oil bottle label. It will work just fine.
Is interceptor oil a premix?
It also highly effective as a premix in older engines. Interceptor offers a sophisticated synthetic base oil and a high detergent content for ultra-clean combustion and incredible deposit-fighting ability. Interceptor is the ultimate 2-stroke oil for maximum performance and wear control.
Is Modern Synthetic 2-Stroke Oil Safe for Vintage Engines?
There are no compatibility problems with running synthetic 2-stroke oil in older engines. Synthetic oil is 100% compatible with all seal and gasket materials. There is nothing but strong benefits to using synthetic oil in older 2-strokes. Expect minimal exhaust smoke, improved throttle response and maximum wear protection.
What is the oil base stock?
The oil-base stock can be petroleum, castor oil, semi-synthetic or synthetic oil and is mixed (or metered by injection) with petrol/gasoline at a volumetric fuel-to-oil ratio ranging from 16:1 to as low as 100:1. To avoid the high emissions and oily deposits on spark plugs, modern two-strokes, especially for small engines such as garden equipment and chainsaws, may now demand a synthetic oil and can suffer from oiling problems otherwise.
What are the additives in two stroke oil?
Additives for two-stroke oils fall into several general categories: Detergent/Dispersants, Antiwear agents, Biodegradability components and antioxidants (Zinc compounds). Some of the higher quality include a fuel stabilizer as well.
Why is the oil in a two stroke bottle blue?
An example of two-stroke oil bottle with measurement cap. Oil is dyed blue to make it easier to recognize it in the gasoline. Because it's not diluted, it appears black in this bottle.
How long does it take for a non-2T oil to turn into gum?
Additionally a non-2T-specific oil can turn to gum in a matter of days if mixed with gasoline and not immediately consumed.
Is 4 stroke oil the same as 2 stroke oil?
Another important factor is that 4-stroke engines have a different requirement for 'stickiness' than 2-strokes do. Since the 1980s different types of two-stroke oil have been developed for specialized uses such as outboard motor two-strokes, premix two-stroke oil, as well as the more standard auto lube (motorcycle) two-stroke oil.
