Honda FourTrax Rancher TRX420FE1 2020, Owner'S Manual

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Servicing Your Honda 119
Service Procedures Fluids & Filters
Fuel
Refer to Safety Precautions on page 103.
Use only unleaded fuel in your Honda. If you ride your Honda in a
country where leaded fuel might be available, take precautions to
use only unleaded fuel.
Your engine is designed to use any unleaded gasoline that has a
pump octane number of 86 or higher. Gasoline pumps at service
stations normally display the pump octane number. For information
on the use of oxygenated fuels, see page 238.
Use of lower octane gasoline can cause persistent “pinging” or
“spark knock” (a loud rapping noise) which, if severe, can lead to
engine damage. Light pinging experienced while operating under a
heavy load, such as climbing a hill, is no cause for concern.
If pinging or spark knock occurs at a steady engine speed under
normal load, change brands of gasoline. If pinging or spark knock
persists, consult your dealer.
Never use stale or contaminated gasoline or an oil/gasoline mixture.
Avoid getting dirt, dust, or water in the fuel tank.
Fuel Recommendation
type unleaded
pump octane number 86 (or higher)
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