I know that most of the saw manufacturers recommend a 50:1 ratio of gas to oil. With the fact that the manufacturers are making their saws run leaner and leaner, I was wondering if there is a downside to making the oil ratio a little lower. I was thinking of mixing a 2.6 oz. bottle of oil to 0.9 gallons of gas which would yield a ratio of 45:1. I understand that my saw will smoke more, but will it cause any abnormal motor problems such as carbon build up? Also, will the increased amount of oil help to protect the motor if I happen to have the carb leaned out too much?