Many contemporary Craftsman chain saws are manufactured by Poulan and operate smoothly with a
50:1 fuel-oil mixture
. Models sold before 2010, such as the 18-inch, 50 cc model from 2006 or the 18-inch 42 cc model from 1997, require a 40:1 mixture.
Do Craftsman chainsaws take regular gas?
The Craftsman chainsaw runs at high speeds, often higher than 10,000 RPM, so it needs a higher-quality gasoline to keep the piston at the right operating temperatures. …
Never use gasoline with
other additives, such as ethanol or gasohol, and never use diesel gasoline for the mix.
What type of gas should I use for my chainsaw?
To start, both Stihl and Husqvarna recommend the use of
high octane unleaded gasoline
. Both brands of pro saws are designed to burn fuel rated at 89 octane or higher. Most regular grade fuel has an octane rating of about 87. This is not enough.
Do chainsaws use regular gas or mixed gas?
Nearly all gas chainsaws require
a gasoline and oil mixture for their fuel
. Chainsaw engines require a premixed fuel to keep them running at the proper temperatures. The oil that's added to the fuel lubricates the piston and crankshaft, but it also keeps the engine cool enough to keep running.
Which has more oil 40/1 or 50?
The maximum amount of oil in the 40:1 ratio standard means
3.2 ounces of oil per gallon of gasoline
. Such a ratio is standard in 4-Cycle engines. While 50:1 ratio means 50 parts of gasoline to one amount of a 2-Cycle oil, about 2.6 ounces of oil for one gallon of gasoline.
How do you mix fuel for a Craftsman chainsaw?
To achieve this ratio,
add 4 ounces of oil to each 1 gallon of gasoline
. If the engine smokes excessively or doesn't perform well, reduce the ratio to 40:1 by adding 3.2 ounces of oil to each 1 gallon of gasoline. If the engine is designed to run on the leaner oil mixture, it will perform better.
Can I use 93 octane in my Stihl chainsaw?
STIHL recommends that customers use a minimum of
89 octane fuel
. If a customer chooses to use a 91 or 93 octane fuel, no damage to the engine will result.
Premium fuel is not only better for your equipment—it's better for the environment, too. High-octane gas and high-quality, synthetic oil are odor-free and burn cleanly, so you can operate your two-stroke equipment worry-free.
Can I buy gas without ethanol?
According to Dan McTeague, a noted petroleum analyst,
Shell and Esso 91 are both ethanol free
. All other grades from the companies have some ethanol content, but the mid-grade blend is pure gas, which means it not only corrodes less than ethanol blends, but is less likely to deteriorate when stored.
What happens if you put regular gas in a 2 stroke engine?
If you are using too lean of a gas mix,
the pistons will not be lubricated properly, and they will freeze up in time
. This happens very quickly when you use regular gas in a two-cycle engine. You will not be able to pull the draw cord to start the blower once the pistons have locked up.
What is the ratio of gas to oil for a chainsaw?
Chainsaw oil mix ratios explained
Say your chainsaw manufacturer recommends a
50:1 fuel/oil
mix. This simply means you need 50 parts of gas to one part two-stroke oil. To mix one gallon of fuel at 50:1, add 2.6 ounces of two-stroke oil to one gallon of gas, as the top chart shows.
What happens when you run straight gas in a 2 stroke?
Without lubrication, it'll cause high friction,
causing heat and causing metal filings from the piston rings knocking around, and losing a seal
. In a way, oil counteracts all of these. If it'll still turn over, flush the fuel, and put in the correct mixture of petrol and oil.
What is 50 1 gas oil mix?
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.
What does a 50 to 1 ratio mean?
The mix ratio is the proportion of gas to oil, expressed as a ratio. For example, 50:1 means
50 parts gas to 1 part oil
.
What is the best 2 stroke mix ratio?
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.
What is the gas oil mixture for a Craftsman leaf blower?
The fuel to oil ratio for you Craftsman blower is
40:1
. Forty parts of fuel to one part of 2 cycle oil.
