Justsaws
Addicted to ArboristSite
It is a federal mandate that fuel can not contain more than 10% Ethenol unless otherwise posted. Ethenol is nothing new it has been used at 10% ratios since the early 80's. Im originally from MN and every station has had 10% ethenol as state mandate since I remember. Only issues with ethenol is that is absorbs water. That translates that if you have good fuel storage practices you will not have any issues if you have poor fuel practices then you will continue to have issues. On old products 60's and 70's you may have some swelling of rubber components. At the very most if you run an ethenol blended fuel you may have to richen the carb up a little bit but it will not take much. If your testing fuel and it is over 10% contact the local government.
Well said. Ethanol is not new or as big an issue as some seem to think. I put concerns about E10 in the welcome to the 1980s category.