The Generac generator fire up when you flip the switch. Light flow back into your home. You feel relief.
But if you don’t check the oil, that’s just a temporary relief. Eventually, no lubrication mean the engine will stop running. That’s seizure time.
People procrastinate on oil changes. The majority of us puts it off. Wait until something happens.
Wait ’til we hear a weird sound or see a warning light. But by that time it’s too late; the deed is already done. When your engine freezes in a blizzard, its expensive.
Expensive as in no heat/power when you want it most. To avoid that, the first thing you need to know is actual oil capacity. It is not an estimate, but a spec.
Essential Oil Care for Generac Generators
Why Oil Capacity Matters
Get that correct and the pump will coats the cylinder walls and the bearings. This reduces friction and heat. How much?
That vary by engine size. You may only need two quarts if your unit is a small portable one. If you’re filling a big standby home generator, that’s five or six quarts.
Risks of Overfilling Oil
Just like underfilling, overfilling can be bad news. When there’s too much oil in the crankcase, it put pressure on the engine. The piston slap around in the liquid, which creates foam.
And foamy oil doesn’t lubricate. It removes protection from moving parts. Check your owners manual.
Every model are slightly different. For example, some models of Generac’s Guardian series is different based off engine block and wattage. Their portable GP Series generators also similar.
Check the manual for exact size. Don’t make assumptions. Your neighbor might have the same generator but it don’t hold the same volume.
Not all engines is alike. Some has tighter clearance. Some have bigger sump.
Choosing the Right Viscosity
Volume of oil matter but so does its viscosity (thickness). In most warm climates, the standard for Generac engines are SAE 30. When it’s cold up north, they may recommends 5W-30 or even 10W-30 (synthetic blends).
These is thinner oils that flow better while the engine is cold. That helps prevent wear on the engine as it ignites. The manual will tells you the range.
Stay within those parameters. Performance synthetic oils is popular with many owners. In high-heat environments synthetics resists breaking down.
Synthetic vs Conventional Oil
They lasts longer between changes. It is great if you have a standby unit that sits idle for months. It doesn’t break down as fast.
Offers steady protection in the event of grid failure. Synthetic oil is expensive. You’re paying for performance and longevity.
If your generator frequently run, the price is worth it. If it’s used infrequently, then conventional oil might be fine. The easy one is checking the oil.
How to Check Oil Levels
First, let the engine cool. Remove the dip stick. Clean it.
Put it all the way back in. Remove it again. Between the Full and Fill marks on the dip stick, there should of oil.
Top her off S-L-O-W-L-Y if needed. Add half a quart at a time. Then check again.
Continue doing this until correct. Slowly adding avoids over filling. Better to have added too little than too much.
You can always add, you can’t easily remove excess without having to drain the entire system. Keep the generator maintained. The generator is reliable but regular maintenance assure that it will remain so.
Recommended Oil Change Schedule
Every 100 hours of use change the oil. At least once a year. Whatever happens first.
That’s normal for most small engine. And it keep new, clean oil circulating through the machine. Left unchanged, dirty oil has carbon deposits and metal shavings in it.
Those turn to little bits of sandpaper on moving parts. Over time they’ll wear things down. Maintenance can be as easy as spending a minute or two checking your oil levels now so that you don’t have to have a big-time repair job later.
Use the right grade of oil. The proper amount in the tank. And change it when it’s time.
Your Generac generator is an investment. Basic care is protection for it. You get peace of mind knowing you’re ready when the next storm rolls through.
You don’t need any excuses. You need power. Your oil management provides peace of mind.
It keeps engine running cool and smooth. A breakdown turns into a smooth backup.