Question about Craftsman 25cc Gas Line Trimmer

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What specific gas mixture is used? 40:1, so 3.2 ounces to a gallon of gas?

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Ok for 1 US Gallon of gas or 3.78 Liters a 60:1 ratio is achieved with 2.0 oz or 63ml of 2 cycle oil

50:1 2.5 oz or 75ml
40:1 3.2 oz or 94ml
30:1 4.2 oz or 126ml
25:1 5.1 oz or 151ml

in all cases if the 1/10 is rounded off its close enough. Like in the case of 25:1 5.0 ounces instead of 5.1 is good enough. But...don't guess on feel. Measure it sure the amounts in the bottles are correct.

Posted on May 11, 2010

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That is correct

Posted on May 09, 2010


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How many ounces in a gallon

Guess you are asking this because you need to mix your 2-cycle engine oil with gasoline. One gallon = 128 fluid ounces if you are in the US. In the UK, 1 UK gallon = 160 UK ounces.
I totally plagiarized this information from
Not plagiarized: you want to use the correct mixture for your blower to get it to start easily. Your blower probably uses a mixture of either 50:1 or 40:1. I use a product called ProMix Premium that allows me to squeeze the bottle to measure out the correct amount of oil into a gallon of gas. I use two different gallon sized gas containers, one with a 50:1 mixture and the other with a 40:1 mixture. Between the two mixtures, all of my machines will start and run well according to their oil mixture requirements. Usually the machine will have a label on it to tell you the correct mixture, if not, check the owner's manual or instructions.

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Since my research shows this to be an older unit, I recommend a 40:1 mix. That is 3.2 ounces of 2 stroke oil / gallon of gas, or 1.6 ounces of oil in half-a-gallon of gas. Here is a mixture chart.

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How much oil do I use per 1gallon of gas for a Husqvarna 223L weed eater?

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What oil mixture do i use

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Jul 13, 2010 | Craftsman 25cc Gas Line Trimmer

1 Answer

What is oil to gas ratio? What type of oil what type of gas/

A mixture of 40:1 would give good performance and protection with minimal smoke issues.
3.2 ounces of oil added to 1 gallon of gas would equal a 40:1 ratio.
Don't use outboard motor oil. Water cooled engines on those.Use a 2-Cycle oil specific to AIR COOLED engines.
Hope this hepls!

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