Kohler Fuel Recommendations

Kohler is a company with many business interests. Although perhaps more well known for making bathroom fixtures, they also make small engines that can be found on numerous brands of lawn care equipment and some commercial equipment applications.

In the frequently asked questions section of their website they say that use of E10 is acceptable.

What fuel is recommended for my engine?

Unleaded regular gasoline with a pump sticker octane rating of 87 or higher can be used. If you are required to use oxygenated fuel, blends containing a maximum of 10% ethanol or 15% MTBE are acceptable. Fuels with higher concentrations and methanol blends are not recommended.

Source : Kohler