On Tuesday, November 6, 2012 10:55:35 AM UTC-5, GuzzisRule wrote:
My chain saw wants a 40/1 mix. My blower wants a 50/1. Rather than have another gas can sitting

around, I'm thinking of making a 45/1 mix and using it for both. Will that be safe?

You'll be fine. Use high quality oil, not the cheap, no-name crap.