40:1
The proper mixture is 40:1 or 3.2 oz oil to 1 US Gallon of gas.
If using an oil other than McCulloch, the ratio is 40:1. Brand Specific McCulloch two cycle oil is 20:1.
The fuel mixture for a Stihl chain saw is gas and oil.
I have model number 60003816 and I run 3oz of oil to 1 galion of gas. Works good but I'm not positive that's what is recommended. The manual for that chainsaw requires a 20:1 mixture of non-McCulloch two-cycle oil. That is 6.4 oz. per gallon of unleaded gasoline regardless of what it says on the oil container.
A. . McCulloch has written: 'Gas analysis'
40:1 40 parts gas to 1 part oil.
Hi, Back when it was manufactured, it called for 16:1. Gas was different back then also. Mixing at 32:1 with a high quality oil should work fine.
mine says 40:1 on the gas cap, and its the origanal cap. hope this helps.
1 oil to 40 gas.
I have one & it says on the gas tank 40:1. Although, I have many 2 stroke tools, so I mix everything 32:1 & adjust the carb screws accordingly. That way I only have to have one gas tank on hand with one mixture.
You won't go far wrong using a 40/1 mixture and adjusting if you need to.
If this posting does not get an authoritative answer, I suggest you Google for current distributors of the Timber Bear and e-mail or phone them. The biggest concern I would have with any answer to this question is whether the Timber Bears now on the market have the same requirements as those sold in the mid-90's. Another issue would be what is the oil to mix with the gas - is there a baseline specification or can you use any brand of two cycle chain saw oil - can you go into a Sears or Home Depot and successfully use any of the chain saw oils there as long as you use the mixing ratio prescribed for the McCulloch Timber Bear?