Use and Care Manual
12
CS-501P
 WARNING
Alternative fuels, such as E-15 (15 % ethanol), 
E-85 (85 % ethanol) or any fuels not meeting 
ECHO requirements are not approved for use 
in ECHO 2-stroke gasoline engines. 
Use of alternative fuels may cause 
performance problems, loss of power, 
overheating, fuel vapor lock, and unintended 
machine operation, including, but not limited 
to, improper clutch engagement. 
Alternative fuels may also cause premature 
deterioration of fuel lines, gaskets, carburetor 
and other engine components. 
IMPORTANT 
•ECHOpremiumPowerBlendX™Universal
2-Stroke Oil may be mixed at 50 : 1 ratio for 
application in all ECHO engines sold in the past 
regardless of ratio specified in those manuals. 
•Useofunmixed,improperlymixed,orfuelolder
than 90 days, (stale fuel), may cause hard 
starting, poor performance, or severe engine 
damage and void the product warranty. Read 
and follow instructions in the Storage section of 
this manual. 
Fuel Mix Chart 50 : 1
U.S. Metric
Gasoline Oil Gasoline Oil
Gallons US. fl. oz. L mL
1 2.6 4 80
2 5.2 8 160
5 12.8 20 400
FUEL AND LUBRICANT
FUEL STATEMENT
Gasoline - Use 89 Octane [(R+M)/2] (mid grade or 
higher) gasoline or gasohol known to be good 
quality. 
Gasohol may contain up to 10 % Ethyl (grain) 
alcohol or 15 % MTBE (methyl teriary-butyl ether). 
Gasohol containing methyl (wood) alcohol is not 
approved. 
ECHObrandPowerFuel™is93octane,ethanol-
freefuelpremixedwithECHORedArmor™engine
oil at 50 : 1 ratio. 
UseofECHOPowerFuel™isrecommendedto
extend engine life in all air-cooled 2-stroke and 
2/4-stroke hybrid engines. 
Two-Stroke Oil - A two-stroke engine oil meeting 
ISO-L-EGD (ISO/CD 13738) and JASO M345-FD 
Standards must be used. 
ECHObrandpremiumPowerBlendX™Universal
2-Stroke Oil meets these standards. 
Engine problems due to inadequate lubrication 
caused by failure to use an ISO-L-EGD (ISO/CD 
13738) and JASO M345-FD certified oil, such as 
ECHOpremiumPowerBlendX™,willvoidthe
two-stroke engine warranty. 










