- Generator Maintenance Tips
Generator Oil Check and Adding Oil Tips in Tomball, TX
Tips for safely servicing and maintaining your backup generator in Tomball, TX and the greater Houston area.
- Important Safety Note: Do NOT add oil to a hot generator — let it cool completely first. Always turn OFF the generator breaker before checking oil. Never turn the generator off at the Emergency Stop switch unless it's a true emergency.
- Servicing Tips & Guidelines
When to Check Your Generator's Oil
Servicing your backup generator is essential to its long-term performance and reliability. A general rule for knowing when to check and/or add oil: if you have been running your unit for 4–5 days straight, or if it has been sitting for longer than 6–8 months with no use.
Running for 4–5 Days Continuously
If your generator has been running nonstop during an extended outage, it’s time to check the oil level and add more if necessary.
Sitting Unused for 6–8 Months
Long periods of inactivity can degrade oil quality. Always check before the storm season begins or before extended use.
Let the Generator Cool First
Never add oil to a hot generator. Allow it to cool down completely before removing the dipstick or adding oil.
Turn Off the Breaker — Not the Emergency Stop
Make sure to turn OFF the generator breaker first. Never use the Emergency Stop switch unless there’s a real emergency.
Too Much Oil Is Worse Than Too Little
Overfilling oil can cause serious engine damage. Add oil gradually and check the dipstick each time.
5W-30
Recommended Oil Type
Full Synthetic Formula
- Oil Specification
Use 5W-30 Full Synthetic Oil
Your generator requires 5W-30 Full Synthetic oil for optimal performance and protection. Using the correct oil type and viscosity is critical for engine health and longevity, especially in Houston’s climate conditions.
Full synthetic oil provides superior protection across a wider temperature range, better resistance to breakdown, and improved fuel efficiency—all of which extend the life of your generator.
After Extended Use
Check oil after 4–5 days of continuous operation during a power outage.
Seasonal Check
Always inspect before storm season or after 6–8 months of inactivity.
During Annual Service
Oil is changed during routine annual maintenance visits by our technicians.
Follow Your Manual
Refer to your generator’s user manual for model-specific service intervals.
- DIY Video Guide
Step-by-Step Oil Check Walkthrough
This DIY video walks you through checking the oil and adding the correct amount safely and efficiently. Our technician demonstrates the exact process on a 22kW generator.
Watch to learn where the dipstick is located, how to read oil levels correctly, and how to add oil without overfilling—the most common and costly mistake.
Not comfortable doing this yourself? No problem — our expert technicians are available to perform oil checks and top-offs as part of our maintenance programs.
- Safety First
Safe Oil Check Process
Follow these four steps every time you check or add oil to your generator.
1
Turn Off the Breaker
Switch the generator breaker to the OFF position. Do not use the Emergency Stop switch for routine maintenance.
2
Let it Cool Down
Allow the generator to cool completely before touching any engine components or removing the oil dipstick.
3
Check the Oil Level
Remove and wipe the dipstick, then reinsert it fully and remove it again to get an accurate reading of your current oil level.
4
Add Oil Gradually
Use 5W-30 Full Synthetic oil only. Add a small amount at a time, checking the dipstick after each addition to avoid overfilling.