Westinghouse generators use small four-stroke OHV engines, from 56 cc on the iGen1500c to 224 cc on the iGen5000c. They don't need much maintenance, but oil is the one thing you can't skip.
Which oil?
Use the oil grade listed in your generator's owner's manual. For most small air-cooled generator engines that's an SAE 10W-30 detergent oil, with other grades allowed for very hot or cold weather. Most Westinghouse generators ship with an oil bottle and funnel in the box. Fill to the level in the manual before the first start, because the generators come without oil.
When to change it
- After break-in: new engines shed fine metal particles, so the first oil change comes early. Follow the interval in your manual.
- Then regularly: change by hours of use (the LED data center on many iGen models shows lifetime hours) or at least once a season.
- Check the level before every start. Automatic low-oil shutdown protects the engine, but don't rely on it as your oil gauge.
Other routine care
- Inspect the air filter and spark plug. A spark plug wrench comes in the box.
- Run the generator under load for a while every month or so to keep seals and the carburetor healthy.
- Keep the starter battery charged on remote and electric-start models. The iGen4000c, iGen4000DFc and iGen5000c come with a battery float charger.
Storing between trips
Stale gasoline is the main cause of hard starts. Before storing for long, add fuel stabilizer or run the carburetor dry. Dual fuel owners can avoid the problem by running on propane before storage; see running on propane.
Safety shutdowns
If your generator stops suddenly, check the oil level first, then the CO indicator. Most Westinghouse models list a CO sensor. A CO shutdown means exhaust is building up: move the generator further from the RV and any openings. It is for outdoor use only.