One pint of oil to a gallon of gas is a ludicrous amount of oil!
That's an 8:1 ratio (British gallons). It's even more for an American gallon.
The heaviest of oil rations recommended is 25:1. That's 40cc of oil for a litre of petrol. Or an ounce of oil for 25 ounces of petrol.
Many saws seem to require only 50:1 ratio, but if in doubt go for 25:1. At least that way you won't seize it up. At the suggested 8:1 ratio above, you won't be able to find the tree for the smoke cloud you are making, and the saw will stop inside an hour with a filthy spark plug.
Tony, December 2007