40 To 1 Chainsaw Mix

If you want maximum power and cut performance from your chainsaws, nothing beats a gas powered ii-stroke chainsaw. But all that extra power comes at a price: you lot need to go on a close eye on the fuel and oil mixture that you lot pour into the engine. Become the mix ratio wrong, or forget to add oil, and y'all can end up with a ruined engine. So, what is the correct gas to oil mixture ratio for 2-stroke chainsaws?

Premixed chainsaw fuel is a solution, as is making a DIY mix. But since each brand has their take on what works best, I thought it best to compile this guide for all the chainsaw owners out there.

What Is the Gas to Oil Mixture Ratio for 2-stroke Chainsaws?

Why Utilize A Fuel Mix At All?

A four-stroke engine stores its motor oil in a divide compartment: the crankcase. In a two-stroke engine, at that place is no oil compartment in the crankcase. The oil for the piston and all the moving parts has to be added forth with the fuel. Adding high-quality engine oil reduces friction and keeps the engine working at a prophylactic temperature.

If you add likewise trivial oil to the fuel, the longevity of your chainsaw engine volition be compromised.

Internals will overheat, the piston will seize, parts volition burn out, and the engine will exist across repair.

Crank Case

Conversely, if y'all add too much oil, the engine may not first, a lot of fume may be produced, and the spark plug may get fouled. And so, getting your ii-stroke chainsaw fuel mix only right is essential for the prophylactic and extended use of your saw.

The Correct Gas to Oil Mixture Ratio for 2-Stroke Chainsaws

If y'all were to take a cursory look at the 2-cycle oil mix ratio chart of a big brand chainsaw maker, there are mainly two ratios you will come across:

40: ane
50: one

Merely a quick note: here xl:1 ways twoscore to 1 gas-to-oil ratio, not forty to 1 oil to gas ratio. Of course, it doesn't make sense to add forty parts of oil to one part of the fuel, and nobody in their right mind would do then, but information technology's worth mentioning to avoid disastrous misunderstandings.

forty:1 RATIO


UNLEADED GAS	2-CYCLE OIL
1 Gallon U.s.a. (3.8 Lts)	3.2 Fl Oz. (95 ml)
1 Liter	25 ml

Back in the twenty-four hour period, significant just a few decades ago, ii-stroke engines that used fuel mixes with ratios as low as 32:1, xx:1, and even 16:1 were mutual. Merely these engines were notorious for generating a lot of smoke while working. As a effect, they were phased out of the market place when the EPA imposed more stringent make clean air standards.

Is there a significant difference between 40:1 and 50:one ratios?

The EPA upper limit for oil ratio for two-stroke engines is currently set at forty:ane. Since the new restrictions mean that less oil has to exist used, in that location was a need for constructed oils that could do more work in lesser quantities. As a upshot, modern synthetic 2-stroke oils were developed with superior lubricating and cooling backdrop.

Though 40:1 is the ceiling, most of the major brands accept come to apply the lower 50:i ratio as the standard for all 2-bicycle engines with faster RPMs above 5000. Is there a significant divergence in their performance? Regarding exhaust emissions, 50:1 will exist the cleaner option.

Only if you accidentally utilise a mix of twoscore:1 in your 50:1 rated chainsaw, or vice versa, it wouldn't cause any meaning problems. But it is always best to stick to the specifications laid downward by the particular brand.

Older equipment might adopt 40:1, and this richer blend will work on those actually former saws rated at 32:1 or college.

When yous mention the ratios, as in, 40:1 vs. l:1, that might sound like a lot, simply in reality, the actual amount of oil used is quite minuscule. For instance, in U.s. gallons, a 50:1 ratio is equal to 2.5 ounces of oil per gallon of fuel. And a forty:1 ratio is simply iii.2 ounces of oil per gallon. The divergence is but half an ounce, maybe a spoonful, and that is not going to crusade much of an impact either way.

You can study a 50 to 1 gas ratio chart online, or you can utilize a handy converter to summate your requirement, like this one here.

Premixed vs. DIY Blends: Which is amend?

The advantage with premixed blends is that y'all don't accept to worry about the quality of the component oil and fuel. You cannot just have any fuel and oil and mix them for your chainsaw. With a premixed blend, all that piece of work is already taken intendance of, and all you lot accept to practise is cascade the blend into your chainsaw and fire it upwardly!

For example, Husqvarna markets their blend of fuel and oil in a 50:ane ratio, especially for chainsaws. This is one of the all-time premixed fuel options available for a two-cycle chainsaw.

Available in one-quart bottles, it is perfect for home users who don't take to burn down upwardly their chainsaws on a daily footing. But for professionals and regular users, the more economical pick might exist to make their fuel oil blends in larger batches.

To know about another premixed fuel options out there, lookout man this YouTube clip:

What kind of fuel and oil should I use for a DIY alloy?

All chainsaws need loftier octane gasoline. Though the stated minimum is usually 87, anything effectually or in a higher place 89 (mid-grade and unleaded) is preferable for maximum performance and longevity.

But another huge issue with gasoline y'all buy is the amount of ethanol in it. Though ethanol is safe for vehicles and nigh motors, in handheld device engines similar those of chainsaws, it can cause trouble. Ethanol does not bond with the ii-stroke oil used in chainsaws and can pb to engine deposition due to inadequate lubrication.

Ethanol tin can likewise absorb a lot of water, and dissolve or corrode any plastic parts used in a chainsaw. These days most gasoline available in the U.s.a. is mixed with x% ethanol (E10 gas). It can be utilized for your chainsaw, but be prepared for extra maintenance to avoid long term bug related to friction, h2o, and corrosion.

And then the safest option is ethanol-gratuitous gas, if you tin find it. As far as the pick of 2-stroke synthetic oil is concerned, there is no shortage of excellent options in the marketplace. Major manufacturers like Husqvarna and Stihl sell their brand oils, suitable for almost all chainsaws currently available in the market. Here are a few examples bachelor on Amazon:

Most of these oils are available in conveniently measured bottles, with each bottle containing enough oil to brand a 50:1 mix with i gallon of fuel. And so you don't actually have to worry about finding the correct amount if you are mixing in bulk. Fifty-fifty otherwise, it is not a terrible chore, though it tin can get very messy at times!

Check out this YouTube video for a guide on how to mix fuel and oil for a Husky chainsaw:

2019 Recommended Fuel Oil Ratios For Major Chainsaw Brands


According to their website, all Stihl-branded chainsaws run on 50:1 ratio of gasoline to synthetic 2-stroke oil. The recommended gas is mid-grade 89 octane, combined with the Stihl branded 2-stroke oils.


As nosotros already mentioned, the company sells their range of premixed fuel combos as well as constructed oils. Their premixed oil has a ratio of 50:1 and is suitable for almost of their gas powered chainsaws, according to their official page.

Other Brands

Worx, Black+Decker: Their catalogs take electric chainsaw, not gasoline powered ones.

Poulan Pro: They too have a branded fuel mix that is rated at 40:i and platonic for all their gas powered tools, including chainsaws. Then Poulan Pro saws crave a richer oil mix, at a ratio of 40:one.

Ryobi: According to the official user manual of their chainsaws, Ryobi recommends a ii stroke oil ratio 50 to ane.

Remington: According to their official guide online about fuel mixes, Remington chainsaws prefer a gas-to-oil ratio of 40:1.

Conclusion

As you may accept noticed, about brands these days prefer a gas-to-oil ratio of either twoscore:1 or 50:one for their chainsaws. As long equally you employ a high-quality 2-stroke synthetic oil, it doesn't actually matter if the ratio is 40:ane or 50:ane. If you programme to make DIY blends, keep these steps in heed:

Use high quality modern 2-stroke constructed oils just.
Stick with mid-class high octane gas, preferably greater than 88-89.
If yous tin find ethanol free gas, employ that.
If not, stick with E90, and take extra care of your saw, with frequent cleaning of the fuel tank.

I hope y'all found this guide useful (don't forget to share if yous did!). Please feel free to share your thoughts with united states in the comments department below. Thank you for stopping by!