Gas/Oil Ratio
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chainsaw Mike
New member
A standard 2 cycle engine should have a 50:1 mix ratio. Here is a great video describing the do's and don'ts of fuel and lubrication for your new chainsaw. Gas Chainsaw Buyer's Guide - How to Pick the Perfect Gas-Powered Chainsaw
DAY
Platinum Member
Look at your owners manual.
If you bought it used, then buy a six pack of 2 stroke oil and mix one can with a gallon of gas.
Use gasoline a notch above the cheapest.
smstonypoint
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It would be best to check the owner's manual. I had an older chainsaw that required a 16:1 mixture. Most of my recent purchases (chainsaws and brushcutters) require a 50:1 mixture, but one (an inexpensive leaf-blower) requires a 40:1 ratio. You can find "universal" two-stroke oil.
Steve
Egon
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Check for the ratio. Use high octane gasoline. And use oil specified for chainsaw use. It will be formulated for the hot conditions.:thumbsup:
Baby Grand
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... and don't forget the Stabil (or similar).
LD1
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MapleLeafFarmer
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what make / model of saw and we can look it up for you?
Most modern saws are 40/1 or 50/1 (more environmentally friendly) versus older saws that can be as much as 16/1.
tracter
Silver Member
25/1 will give you no problems and ensures there is enough oil to lubricate the motor , 40/1 or 50/1 might be a wee bit environmentally friendly but when you chuck the equipment away because the motor is NBG that is not environmentally friendly
IMO
IMO
LD1
Epic Contributor
I have never had a problem with 40:1 or 50:1, And I put a lot of hours on.
25:1 is a bit excessive. I have ran that rich before for a really old saw that called for 16:1. I ran some of that in my modern 50:1 saw, and the decrease in power was very noticable as well as the smoke output.
So if you want to spend more on oil, have the saw run worse, AND fog for mosquitoes all in one shot, then sure, go 25:1.
25:1 is a bit excessive. I have ran that rich before for a really old saw that called for 16:1. I ran some of that in my modern 50:1 saw, and the decrease in power was very noticable as well as the smoke output.
So if you want to spend more on oil, have the saw run worse, AND fog for mosquitoes all in one shot, then sure, go 25:1.