Engine Oil Recommendations; Check Oil Level; Adding Engine Oil; Changing Engine Oil - Generac Power Systems OneWASH Operator's Manual

Maintenance

ENGINE OIL RECOMMENDATIONS

We recommend the use of high-quality detergent oils acceptable if
classified for service SF, SG, SH, SJ or higher. DO NOT use special
additives.
Outdoor temperatures determine the proper oil viscosity for the
engine. Use the chart to select the best viscosity for the outdoor
temperature range expected.
5W- 30 5W- 30
* Below 50°F (10°C) the use of SAE 30 will result in hard starting.
** Above 80°F (27°C) the use of 10W30 may cause increased oil consumption.
Check oil level more frequently.
Synthetic oil meeting ILSAC GF-2, API certification mark
and API service symbol with "SJ/CF ENERGY CONSERVING"
or higher, is an acceptable oil at all temperatures. Use of
synthetic oil does not alter required oil change intervals.
The engine is equipped with an "Oil Alert System". This
system will automatically stop the engine before the oil
level falls below a safe limit. To avoid the inconvenience of
an unexpected shutdown, always check the engine oil level
before startup.

CHECK OIL LEVEL

Oil level should be checked prior to each use or at least every 8
hours of operation. Keep oil level maintained.
1. Make sure power washer is on a level surface.
2. Clean area around oil fill and wipe dipstick clean remove oil fill
cap (Figure 38).
3. Verify oil is at the proper level on the dipstick.
4. Insert the dipstick into filler neck but do not screw it in.
5. Replace and tighten oil fill cap.
18
SA E 30 * S A E 30 *
1 0W-30* * 1 0 W-3 0* *
NOTE:
NOTE:
Figure 38 – Fill Engine Oil

ADDING ENGINE OIL

1. Make sure power washer is on a flat, level surface.
2. Check oil level as described in Checking Oil Level.
3. If needed, slowly pour oil into oil fill opening until the proper
level on the dipstick is reached.
4. Insert the dipstick into filler neck but do not screw it in.
5. If level is low, fill until the oil level is between "L" and "H" on
the dipstick (Figure 39).
6. Replace and tighten oil fill cap.
Figure 39 – Dipstick

CHANGING ENGINE OIL

If you are using your power washer under extremely dirty or dusty
conditions, or in extremely hot weather, change the oil more often.
Avoid prolonged or repeated skin contact with used

motor oil.
• Used motor oil has been shown to cause skin cancer in certain
laboratory animals.
• Thoroughly wash exposed areas with soap and water.
Acceptable Oil
Level Range