Honda EZ6500CXS Owner's Manual page 21

Engine oil
Engine oil is a major factor affecting engine performance and service life.
Non detergent oils and 2-stroke engine oils will damage the engine and are not
recommended.
Check the oil level BEFORE EACH USE with the generator on a level surface with
the engine stopped.
Use a high quality detergent oil classified "For Service SF,SG,SH,SJ" 4-stroke motor oil.
Use no special additives with recommended oils. Do not mix oil with gasoline.
** Air-cooled engines run hotter than automotive engines. The use of no-synthetic
multi-viscosity oils (5W-30,10W-30,etc.)in temperatures above 40 ° F(4℃ ), will
result in higher than normal oil consumption. When using multi-viscosity oil, check
oil level more frequently
** SAE30 oil, if used below
40°F (4℃), will result in
hard starting and possible
engine bore damage due to
inadequate lubrication.
Engine oil change
Drain the oil while the engine is warm to assure rapid and complete draining.
1) Remove the drain plug and sealing washer, oil filler cap, and drain the oil.
2) Refill with the recommended oil and check the level.
3) Reinstall the drain plug and sealing washer. Tighten the plug securely.
Sealing washer can not be reused. Replace with new.
Oil capacity: 1.1ℓ
OIL DRAIN PLUG
20
5W-30 , 10W-30
-20 -10 0 10
AMBIENT TEMPERRATURE
30
40 ℃
20 30