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Engine Oil Type SAE 10W-30
(See Honda’s Owner Manual)
Engine Oil Capacity
Honda GX160 20 fl. oz.
Honda GX270 37 fl. oz.
Honda GX390 37 fl. oz.
Engine Fuel Capacity
Honda GX160 3.3 US quarts (3.1 L)
Honda GX270 5.6 US quarts (5.3 L)
Honda GX390 6.4 US quarts (6.1 L)
Pump Oil Type CAT pump oil
Pump Oil Capacity
CAT Pumps
3DNX25 8.5 fl. oz.
3SPX30 10.15 fl. oz.
66DX35 18 fl. oz.
Pump Detergent Suction
Water to detergent ratio 10 to 1 (10% detergent)
Water Supply Requirements
Minimum inlet pressure 20 psi
Maximum inlet pressure 100 psi
Maximum inlet temperature 100˚ F
Minimum inlet flow rate 5 gpm
Inlet garden hose size 5/8 in. I.D.
Maximum inlet garden
hose length 50 ft
Daily
After first 5 hours of
operation
Every 25 hours of
operation
Every 50 hours of
operation
Each 100 hours of
operation or every 3
months
• Check water inlet screen and
filter.
• Check engine oil levels. Fill as
necessary.
• Check gasoline level. Fill as
necessary.
• Change engine break-in oil.
Use 10W-30 automotive
detergent oil. See your Honda
Owner’s manual for specific
information.
• Change oil if operating under
heavy load or high ambient
temperature.
• Clean or replace paper air
cleaner cartridge. Tap gently
to remove dirt.
• Change oil.
• Replace spark plug.
• Replace paper air cleaner
cartridge.
• Change engine oil.
Maintenance Schedule Action needed
Maintenance Schedule
Horizontal Oriented Pressure Washers
Technical and Consumer Information
Maintenance (Continued)
Operating Instructions and Parts Manual
10
Service Record
Date Maintenance performed Replacement components required
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