Best Oils For Generator
Power and Energy

5 Best Oils For Generator 2022 (Performance Booster Oil)

Are you tired of not being able to find the best oil for generator? We’re here to back you up with our brief guide containing an extensive array of suggestions on several quality oil manufacturers!

We use the same synthetic motor oils in generators that are used in cars most of the time. So, you’d be needing a quality 5W-30 synthetic oil to get the optimum power output.

5 Best Oils for Generators – Reviews & Buying Guide

Plenty of choices in the market we found. We researched and picked 5 top-notch oils from the market. Let’s follow the in-depth discussion as to why we have selected these oils out of many.

  1. Pennzoil Ultra Platinum Full Synthetic
  2. Briggs & Stratton 30W Engine Oil
  3. Castrol 03084 EDGE 5W-30
  4. Honda 08207-10W30 PK2 Motor Oil
  5. Shell Rotella T5 Synthetic Blend 15W-40

1. Pennzoil Ultra Platinum Review- Full Synthetic Oil

First in our list is the Pennzoil Ultra Platinum full synthetic oil if you’re having issues during hard cold wintry nights at camping sites or living at a place where you get a month-long constant sub-zero temperature.

Yes, it has a technology called PurePlus, which is designed to provide you with continuous power support in -13 to -40 degrees Fahrenheit. So you can now be relieved of the severe winter conditions.

Oxidative test approves of its better viscosity control. If you’re someone who likes to maintain high oil efficiency by cutting down a large amount of cost annually, you can go for Pennzoil. It will provide you with the required fuel and cost efficiency any day!

It also protects your devices from loss of power and supplies you with faster oil flow at low temperatures and has quality defense mechanisms to safeguard you from extreme heat conditions. Comes with added wear protection resulting from friction in your engines.

Another interesting fact about this oil is, it’s not made out of crude but of the cleaner and more efficient natural gas using an intricate gas-to-liquid technology!

Despite the positives, there is a straightforward issue that can irritate you. It is the packaging; it may have oil stains on the plastic container and the bags, which can seem highly annoying. 

Considering Pennzoil on the whole, this extraordinary SN/GF-5 certified oil can be an excellent add on for your whole house generator every time!


  • Excellent Performance in Wintry Condition
  • Made of Natural Gas
  • Protects You From Engine Wear
  • Outstanding Fuel Economy
  • Faster Oil Flow


  • Flawed Packaging

2. Briggs & Stratton 30W Engine Oil


Next up, it is the Briggs & Stratton 30W oil. Undoubtedly one of the most well-received and trusted oils that you can find today on the market. Now we’ll uncover several secrets that made this popular oil what it is today!

The last oil we discussed was mainly directed for colder weather conditions of the North. But, it is slightly the opposite and specially designed for the warmer climate of the South!

This particular oil is an ultimate performance enhancer for your generators run under the hot sun. It’s’ impressive technological breakthrough lets you give you optimum performance under 40-100 degrees Fahrenheit.

This is a detergent oil, which means its lubricating properties would provide you with sludge dispensing capabilities for your generator engines.

Despite the slight packaging defects, it doesn’t have any ill reputation and can be considered one of the top quality oils without a doubt!

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  • Works Excellently in Warmer Climate
  • High-Quality 30W Oil
  • Detergent Oil Provides Sludge Dispensation
  • Outstanding Performance


  • Can Sometimes Provide Faulty Packaging

3. Castrol 03084 EDGE 5W-30- Castrol EDGE Full Synthetic Review

Castrol 03084 EDGE 5W-30

Looking for the best synthetic oil for the Generac generator in your backyard? Then this Castrol 03084 Edge can be recommended at any given moment. Unsurprisingly it is admired by thousands and distinguishingly well received. Let’s not wait more and quickly find the unique features that bring it up among the best of the bests.

This is a fully synthetic motor oil that comes with a premium grade quality providing you with the possibility of exceptional performance. Further, the Titanium Strong technology maintained in the oil construction also improves engine function.

It also reduces the issue of metal-to-metal contact in the generator engine, making it durable against wear. Moreover, you’d find the oil to be working exceptionally well in terms of safeguarding the engine during drain intervals.

Another exciting feature is its tendency to decrease engine deposit formation. This feature is another performance booster that maximizes your engine response.

Further, the support it provides during cold winters is outstanding. So, you can expect to start up your generator in cold Northern winters without issues.

One important thing that should be checked right after you get the package is the container condition. Sometimes it can happen that a faulty container is leaking oil. So, it is always best to instantly check the product for any exterior damage so that claims can be made.

Keeping the faulty container issue aside, this is perhaps one of the most trusted oil products right now. We’d recommend this extraordinary oil for your generator every time!

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  • Phenomenal Performance
  • Titanium Strong Technology
  • Full Synthetic Motor Oil
  • Reduces Metal-to-Metal Contact
  • Maximizes Engine Response


  • Faulty Container Can Leak Oil

4. Honda 08207- Best Oil for Honda Generator

Right now, we’ll go through another quality generator oil by Honda. Honda 08207, quality oil that can boost your generator performance without any issues. Let’s look at some of the key features that make it a highly dependable option for many.

First of all, the thing that goes without saying is the synergy factor. If you’re running a Honda generator, using this oil would undoubtedly make the right combination to supply you with extraordinarily improved performance.

Honda 08207 is an API SN classified oil. This means you’re getting tonnes of benefits from it, like deposit protection for pistons at high temperatures. Sludge control is another key feature in this oil. Moreover, better after-treatment and seal compatibility are other vital features of an API SN classified oils like this one.

Furthermore, it’s a 2 in 1 package that means you’re getting 2 bottles of this quality Honda oil. But, one thing you should remember about this oil is its non-synthetic oil.

Despite it being a non-synthetic oil, the performance is outstanding and highly recommended.

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  • Deposit Protection in High Temperature
  • API SN Certified
  • Sludge Control
  • Unbelievable Performance Output
  • Performs Even Better on Honda Engines


  • Not A Synthetic Oil

5. Shell Rotella- Rotella T5 15W40 Synthetic Blend review

Shell Rotella T5 Synthetic

We’re concluding our brief and highly analyzed guide with the renowned Shell Rotella T5 engine oil. We now will go through the intricate details of this oil and provide you with reasons as to why it is so well-rated.

First, it is a low ash formulation, which is an appropriate mechanism that deals with the issue of exhaust blocking and poisoning.

Another problem that we, generator users face sometimes is the issue of pollution. Smoke emission is a serious downside of generators in your backyard. But with this quality oil, the emission is restricted to a certain extent, giving you better air quality.

Fuel efficiency is often something that many users struggle with. For some, it doesn’t matter much. But fuel efficiency is linked directly with cost reduction. Using your generator frequently can size up a handsome bill due to high fuel consumption. Yet, with its sophisticated low ash formulation, the efficiency is enhanced, and costs kept quiet.

Further, it gives you ultimate low-temperature performance and reduces cold start. Above that, the engine cleanliness and wear protection make it an unavoidable choice for your generator.

Even with the innumerable benefits, poorly made containers can make you lose a good amount of oil before also using it.

Leaving that one negative aside, we can clearly see that on the whole, it’s a splendid choice for your generator hands down. We’d highly recommend it if you ask us.

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  • Low Ash Formulation
  • Less Smoke Emission
  • Fuel and Cost Efficient
  • Retains Performance in Low Temperature
  • Wear Protection


  • Poorly Made Container can Spill oil

Buying Guide to Get the Best Generator Oil

Buying generator oil can seem to be annoying if you don’t have the proper understanding beforehand. That is why our short and highly analyzed buying guide is here to empower you with critical information on the performance-boosting capabilities.

Always Follow Manufacturer Guidelines 

Your generator comes with a manual for a reason. We’d highly recommend you go through that at least once, especially before getting the best generator oil.

The manufacturer may outline the exact oil type you’d require. They can sometimes go as far as to directly mention oil brands’ names that’d provide the best performance.


It is often suggested to have oil and a generator from the same manufacturer. They synergize well and give you an outstanding experience every time. For example. If you’re using a Honda generator, it’d naturally be best to use Honda oil on it.

Viscosity Control

Viscosity is another key feature that you should maintain. As we mentioned earlier, viscosity information can be found in your user’s guide.

Most of the time, you’d need SAE 10W-30 oil for generators. The ‘W’ here means Winter and refers to the efficiency of oil in terms of pumping at low temperatures. The second initial after it signifies the performance level of oil in 100 degrees Celsius or 212 degrees Fahrenheit. On the whole, find oil with better viscosity control.

Temperature Level

Consider the temperature level while buying oil. No point buying a high-temperature specialized oil for a sub-zero environment. Always make sure which weather conditions the oil is best suited for.

Engine Type

What is your engine type? Is it 2 or 4 strokes? Always remember your engine type before purchasing an oil. Most of the generators use a 4 stroke engine, yet it is best to make sure first.

Frequently Asked Questions – FAQ

Can I Use a Different Brand Oil than My Generator’s Motor?

It would depend on the generator model, and if the manual says it’s okay to have different brand oil, then we don’t see any issues.

How Often Should I Change My Generator’s Oil?

You can change it after 200 hours of use, or you can change it annually.

Can I Use Synthetic Oil in a Generator?

Yes. You can definitely use synthetic oil on your generator.

Can I use regular motor oil in my generator?

In theory, you can run generators on regular motor oil, but whether it’d be the best or the worst depends solely on what the manufacturer recommends.

How much oil does a generator take?

It depends entirely on the power of your generator. For example, a 700-watt generator would require 1.4 to 1.6 quarts of oil.

To Sum Up

Understanding what oil should be used in your generator is critical in terms of extending your generator’s life. Moreover, if you use the wrong oil, it can have disastrous consequences in the long run. Thus, highly recommended that you study further on the topic.

Different oil manufacturers have varying benefits and drawbacks. Just simply understand your generator requirements based on mechanical and environmental circumstances to make the most appropriate choice. Now you know how to look and find out the best oil for a generator. So, why wait then? Choose the right oil and transform your power generation experience while adding more life to your equipment.

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