In the video I explain my way of thinking for mixing 2 Stroke oil for the general garden machine, such as weed eaters/trimmers, chainsaws etc. I do mention Stihl Two Stroke oils a well as budget 2 Stroke engine oils. Although i do mention a Stihl brand, I am not a Stihl dealership and i am receiving absolutely NO from Stihl. I just just wanted you to know what I thought of Stihl Oils. Also, i don't recommend only Stihl Two Stroke oils, I also am a fan of other more premium 2 stroke oils such as Amsoil.
For those using Stihl Chainsaws, they usually run on a 50:1 (although this may vary so please read the manufactures recommendations before you use your chainsaw). But if I'm using a less quality budget oil, especially if I am using a budget piece of machinery, then what I like to do, personally, is to make the mix a little stronger. So I go from anywhere between 30:1, even 25:1. This may well make the engine smoke a little more and it may even run a little hotter, but we have to remember that any budget piece of machinery, such as a weed eater, is not exactly a high performance engine, it's made for occasional domestic usage only.
Now, something like a modern Husqvarna or Stihl Chainsaw for example, a quality product, will be ok with a 50:1 mix with the type of quality Stihl 2-stroke oils on the market today. In my opinion this is because the tolerances (Gaps) between the components are likely to be tighter, which means a a thinner viscosity of mix will move through gaps better (again, using only the correct high quality oil), and the metal that the components are made from will be of better, more robust quality.
Here is a detailed instructional presentation type video of mine explaining the meat and bones principle of why a Chainsaw Bogs Down: • Chainsaw Carburetor Pr...
For two-stroke engines to perform at their best and last the longest, the proper fuel to oil mix ratio must be achieved. The ratio of fuel to oil describes how much two-stroke oil is used to lubricate the engine while using petrol as the fuel. The manufacturer's recommendations, the engine design, and the intended use all play a role in determining the appropriate mix ratio.
Two-stroke engines often require a mixture of petrol and oil due to the absence of a dedicated lubricating system. Oil in the fuel mixture prevents excessive wear and lowers friction by lubricating the engine's moving elements, including the piston, crankshaft, and bearings.
Depending on the particular engine and manufacturer requirements, there are different suitable fuel to oil mix ratios. The most common ratios are 50:1 and 40:1, respectively, indicating 50 parts petrol to 1 part oil or 40 parts petrol to 1 part oil. The exact mix ratio must be determined by consulting the engine's manual or the manufacturer's instructions because some engines may require different ratios.
The right mix ratio must be achieved for a number of reasons. A lack of oil in the combination might result in insufficient lubrication, which can hasten wear and even threaten engine damage. A high oil-to-fuel ratio, on the other hand, can lead to inefficient combustion, carbon buildup, fouled spark plugs, and decreased engine performance.
It's crucial to use two-stroke oil of the highest calibre that is made with these engines in mind. These oils have compounds that offer superior lubrication and reduce the growth of dangerous deposits. Avoid using automotive motor oil because it has different characteristics and could harm your engine.
Make sure to use precise proportions and thoroughly mix the fuel and oil to create a uniform blend. For precise measurements, it is advised to utilise a fuel mixing container or fuel canister with obvious markings. First, add the right amount of two-stroke oil to the bottle, then add the right amount of petrol. To achieve appropriate dispersion, gently swirl or shake the container to thoroughly blend the fuel and oil.
To prevent misinterpretation or unintentional abuse, always store the gasoline and oil mixture in an authorised container that is both well sealed and clearly marked with the mix ratio.
In conclusion, factors like the engine's characteristics and manufacturer's recommendations affect the ideal two-stroke fuel to oil mix ratio. The performance, dependability, and longevity of the engine must be maintained by using the recommended mix ratio and premium two-stroke oil. To ensure optimal performance, always consult the owner's manual or the manufacturer for the precise mix ratio.
Craig (Owner and Creator of The Repair Specialist Channel)
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