Checking The Engine Oil Level; Changing The Engine Oil - Generac Q115AF Manuel Du Propriétaire

4.3 CHECKING THE ENGINE OIL
LEVEL
For oil capacities, see the Specifications section. For engine oil
recommendations, see the Engine Oil Recommendations section.
When power outages necessitate running the generator for extend-
ed periods of time, the oil level should be checked daily.
To check the engine oil level, proceed as follows (Figures 4.1, 4.2
and 4.3):
1. If the generator is running during a utility outage, first turn OFF
all associated loads running in the residence. Second, turn the
generator's main circuit breaker to the OFF position.
2. Move the AUTO/OFF/MANUAL switch to the OFF position.
3. Remove the dipstick and wipe it dry with a clean cloth.
4. Completely insert the dipstick; then, remove it again. The oil
level should be at the dipstick "Full" mark. If necessary, add
oil to the "Full" mark only. DO NOT FILL ABOVE THE "FULL"
MARK.
5. Install the dipstick.
Figure 4.1 — Oil Dipstick and Fill, 8kW
Oil Dipstick and Fill
Figure 4.2 — Oil Dipstick, 10kW
6. Reset the AUTO/OFF/MANUAL switch to its original position.
7. If the generator was running during a utility outage, first turn
the generator's main circuit breaker back to the ON position.
Second, turn ON needed loads in the residence.
Never operate the engine with the oil level

below the "Add" mark on the dipstick. Doing
this could damage the engine.
Figure 4.3 — Oil Dipstick and Fill,
13, 14, 16, 17 & 20kW
4.4

CHANGING THE ENGINE OIL

Hot oil may cause burns. Allow engine to

cool before draining oil. Avoid prolonged
or repeated skin exposure with used oil.
Thoroughly wash exposed areas with soap.
4.4.1 OIL CHANGE INTERVALS
See the "Service Schedule" section.
4.4.2 ENGINE OIL RECOMMENDATIONS
All oil should meet minimum American Petroleum Institute (API)
Service Class SJ, SL or better. Use no special additives. Select the
appropriate viscosity oil grade according to the expected operating
temperature.
• SAE 30  Above 32° F
• 10W-30  Between 40° F and -10° F
• Synthetic 5W-30  10° F and below
Maintenance
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