16″ Oregon Chain Saw Repl. Chain Model 1620, 1622, 1624,…

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Usually these type of machines use a 32:1 or a 40:1 ratio but I do not know what the manufacturer of this particular machine calls for. Better oils can use a lesser amount of oil In any case use the best il you can find.

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Most STIHL gasoline-powered equipment runs on a 50:1 mixture of gasoline and 2-cycle engine oil.
A: Hello – We recommend using a 50:1 fuel mixture for optimal performance with this model.
Absolutely. 10w40 is thick enough to mostly stay on the chain. Regular bar and chain oil have additives that keep the oil from slinging off the chain. This is why it is always recommended to use regular chain oil.
For a 50:1 ratio of gas to oil, use 2.6 fluid ounces of oil per gallon of gas. For a 40:1 mixture, use 3.2 fluid ounces of oil per gallon of gas.
We recommend in all of our owners` manuals that you should only use high-quality brand-name petrol with a minimum octane rating of 90, but we can reassure you that petrol with an ethanol content of 10% or less, like the new E10 petrol will not cause a problem with your STIHL petrol tool.
Tips for properly mixing fuel for a chainsaw:

Always mix the petrol and oil in a clean container intended for fuel. Always start by filling with half of the petrol to be used, then add all of the oil, mix (agitate) the fuel mixture and add the remaining petrol. Do not mix more than one month`s supply of fuel at a time.

Naturally, the chain of your chainsaw will need to be oiled well to function perfectly. To make sure that it functions well, grab some WD-40 Multi-Use-Product. WD-40 works great for both – rust prevention and lubrication.
Use for lubricating moving parts, pivot points and bearings. Lubricate small to larger motors found in sewing machines, fans, lawnmowers and trimmers, drills, chainsaws, and other tools.
Well you can get away with using 30 weight or 40 weight or 50 weight or 60 weight gear oil you can`t do it with 5W-30 the oil starts off as five weight and it`ll fall right off the chain it`s far too thin to use as chain and bar oil get yourself some 60 weight gear oil it`s dirt cheap.
Different equipment manufacturers recommend different oil mix ratios, complicating matters. Most modern chainsaws, string trimmers, leaf blowers and other small-engine two-stroke equipment recommend a 50:1 oil mix ratio, but some recommend 40:1 and older two-stroke equipment might even call for 32:1.
Mixing ratios

For a mixing ratio of 1 : 50 you need 5 litres of petrol and 0.10 litres (100cm³) of STIHL two-stroke oil.

1:25 = 1 part oil + 25 parts petrol, or 40 ml oil per litre of petrol when using other brands of oil. Any two-stroke engine oil you use in your petrol gardening tool must have the TC classification.
MAXPOWER Bar & Chain Oil

Blended from 100-percent virgin oil, this uncolored chain oil is recommended by the manufacturer for all types of chainsaws.

Step 1: You`ll need STIHL 2-Stroke oil, an empty and clean fuel can and fresh unleaded fuel from a reputable petrol station. Step 2: Mix at 50:1 (20mls oil per 1L fuel) when you`re using STIHL 2-Stroke oil. If you`re mixing a larger quantity, check out our useful mixing chart.
Mixing ratios

For a mixing ratio of 1 : 50 you need 5 litres of high-octane gas and 0.10 litres (100 ml) of STIHL two-stroke oil.

No, it is not. 2-cycle oil is a gasoline additive that provives lubrication to the internal engine parts since the engine has no oil internally. Bar and chain oil is a much heavier viscosity intended for lubrication of the bar and chain specifically.
Bar and chain oil is stickier than regular motor oil, so it stays on the chain longer. Motor oil flings off the chain more quickly, so if you try Terry`s tip, be prepared to refill the oil on your chain saw more quickly than with regular bar and chain oil.
No. Lawnmower oil is crankcase lubricant for 4 cycle engine. It does not get into combustion chamber at all. Chainsaw needs 2 distinct types of oil.
Without lubricant, the speed at which the chain moves over the chainsaw bar can cause some serious friction. A slowed-down chain and excessive fuel burning mean there`s a lot of friction between your bar and chain, which means a lot of heat is being produced that could do major damage to your saw.
For a mixing ratio of 1 : 50 you need 5 litres of petrol and 0.10 litres (100cm³) of STIHL two-stroke oil.
Husqvarna two-stroke engines are designed to run on clean, fresh, unleaded petrol. As a general guide to oil-to-fuel ratio, 50:1 is recommended in Husqvarna products up to and including 75 cc. In heavy use applications, which include models above 75 cc, these engines may be run on a mix of 33:1.
Two-stroke oil will last for a couple of years when it is not mixed with petroleum. Once mixed with petroleum we would not recommend keeping for more than 3-4 months in a sealed airtight approved storage container. I HAVEN`T USED MY CHAINSAW SINCE LAST SEASON AND IT WON`T START.
WD-40 allows you to clean your generator carburettor within a few minutes without spending additional time and effort. The potent liquid uses a solvent formula for breaking away carbon contaminants within the carburettor, providing you with a clean and healthy machine in no time.
WD-40 Specialist® Carb/Throttle Body & Parts Cleaner with attachable precision straw is the only all-in-one carburetor cleaner spray you will need to clean your carburetor, throttle body, and unpainted metal parts.

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Do I need gas and oil mix – Poulan Super 250a Chainsaw Plate
ANSWER : I think Poulan uses a 40:1 ratio to one gallon of gas, however I have always used 50:1 the same as my sthl saws with no issue. I would rather have more oil mix that to little.

Gas to oil mixture for a RY 26540 – Ryobi 30 Cubic Centimeter Curved Shaft Gas Trimmer
ANSWER : 50:1 don’t use outboard motor mix

Fuel,gas oil mixture – Echo 30.1CC Chainsaw With a 14 In.bar and Chain
ANSWER : The fuel/oil should be in the ratio 50 to 1

Is it straight gas or mixed? – Poulan Pro 14" Gas Chainsaw 33CC P3314
ANSWER : It uses a gas/oil mix. 40:1Hope this helps.

What is the gas oil mixture for the husquvarna 61 chainsaw
ANSWER : 50:1 Here is the spreadsheet with specs.http://www.acresinternet.com/cscc.nsf/ed1d619968136da688256af40002b8f7/01ec47be5550bbce88256d5a005a3315?OpenDocument

I need the gas mix oil ratio for the Poluan Pro 42…
ANSWER : 40:1 gas to oil ratio.

What is the oil and gas mixture ratio for a gas powered leaf blower?
ANSWER : Per http://www.echo-usa.com/faqs/ it 50:1, there is a chart at the site that shows how to mix it.

How do u mix the 50/1 ratio oil and gas mixture
ANSWER : Mix 2 1/2 oz of 2 cycle oil into 1 gal of gas