HCS-2810 / 3810 OPERATIONX7702248300 17© 09/19 ECHO IncorporatedFuel RequirementsGasoline - Use 89 Octane [R+M/2] (mid grade or higher) gasoline known tobe good quality. Gasoline may contain up to 10% Ethanol (grain alcohol) or15% MTBE (methyl tertiary-butyl ether). Gasoline containing methanol(wood alcohol) is NOT approved. Use of ECHO branded fuel isrecommended to extend engine life in all air-cooled 2-stroke and 2/4-strokehybrid engines.Two Stroke Oil - A two-stroke engine oil, such as ECHO branded 2-strokeoils, meeting ISO-L-EGD (ISO/CD 13738) and J.A.S.O. FD Standards mustbe used. ECHO branded 2-stroke oils meet these standards. Engineproblems due to inadequate lubrication caused by failure to use an ISO-L-EGD (ISO/CD 13738) and J.A.S.O. M345-FD certified oil will void the two-stroke engine warranty.2-Stroke engine oil contains petroleum distillates and otheradditives that may be harmful if swallowed. Heated oil canrelease vapors that can cause flash fire, or ignite with explosiveforce. Read and follow the oil manufacturer’s instructions, andobserve all safety warnings and precautions for handlingflammable liquids. For more detailed safety and first aidinformation, visit www.echo-usa.com for a copy of the MaterialSafety Data Sheet.◆ KEEP OUT OF REACH OF CHILDREN.◆ If swallowed, do not induce vomiting. CALL PHYSICIAN ORA POISON CONTROL CENTER IMMEDIATELY.◆ WEAR SAFETY GLASSES when mixing or handling.◆ AVOID repeated or prolonged skin contact.◆ AVOID inhaling oil mists or vapors.ECHO branded 2-stroke oils may be mixed at 50:1 ratio forapplication in all ECHO engines sold in the past regardless of ratiospecified in those manuals.Handling FuelFuel is VERY flammable. Use extreme care when mixing, storingor handling, or serious personal injury may result.