Best Generator Oils

34.8k reviews scanned and analysysed
Tom Ramsey
Tom Ramsey Writer
Last Updated: Oct 22, 2024 Share On:

The task of finding the best generator oils is surely a daunting one.

Testing products, comparing features, analyzing reviews, each process can leave you full of frustration. Thankfully, we've done all of this annoying work for you.

We found 465 products, analyzed 34791 reviews, helped you find the best value for your money, and compiled it into a list.

Keep reading, and we will help you find your prefered products.

A Quick Look: Our Top Picks

Top 1
Stp 18588 Premium Small Engine 4 Cycle Oil Formula
9.8We rank the products based on a number of factors such as features, price, customer reviews and so on.

Stp 18588 Premium Small Engine 4 Cycle Oil Formula

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Top 1 Stp 18588 Premium Small Engine 4 Cycle Oil Formula

Stp 18588 Premium Small Engine 4 Cycle Oil Formula

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Top 2
Briggs & Stratton 100074 Sae 5W-30 Synthetic Small Engine Motor Oil
9.6We rank the products based on a number of factors such as features, price, customer reviews and so on.

Briggs & Stratton 100074 Sae 5W-30 Synthetic Small Engine Motor Oil

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Top 2 Briggs & Stratton 100074 Sae 5W-30 Synthetic Small Engine Motor Oil

Briggs & Stratton 100074 Sae 5W-30 Synthetic Small Engine Motor Oil

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Top 3
Honda 08207-10W30 Motor Oil 10W30 Qt
9.5We rank the products based on a number of factors such as features, price, customer reviews and so on.

Honda 08207-10W30 Motor Oil 10W30 Qt

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Top 3 Honda 08207-10W30 Motor Oil 10W30 Qt

Honda 08207-10W30 Motor Oil 10W30 Qt

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*Note The result is based on our independent research, and we are reader-supported and do not promote any brand or retailer. As a member of Amazon Marketing Affiliates, we may receive a commission from qualified purchases.

Top 20 Generator Oils Reviews 2024 In Detail

1 Editor's Choice

Stp 18588 Premium Small Engine 4 Cycle Oil Formula

STPBrand 18588Model
Ranked #15 in Best Semi Truck Engine Oil Of 2024
Stp 18588 Premium Small Engine 4 Cycle Oil Formula cover
Stp 18588 Premium Small Engine 4 Cycle Oil Formula thumb #1Stp 18588 Premium Small Engine 4 Cycle Oil Formula thumb #2Stp 18588 Premium Small Engine 4 Cycle Oil Formula thumb #3Stp 18588 Premium Small Engine 4 Cycle Oil Formula thumb #4Stp 18588 Premium Small Engine 4 Cycle Oil Formula thumb #5Stp 18588 Premium Small Engine 4 Cycle Oil Formula thumb #6
9.8We rank the products based on several factors, like features, price, customer reviews, and so on.
Rating: Excellent Price: $
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Visit Store » Amazon.com ( 4.68 / 5 )
Features
  • Engineered with Anti-Wear Technology that provides engine part lubrication and reduced engine wear
  • All-weather synthetic blend formula promotes easier starts all year
  • Antioxidants fight thermal breakdown to enhance oil durability
  • Viscosity index improver helps reduce oil consumption
  • Detergents help keep engine components clean and control carbon deposits
  • Corrosion inhibitor promotes equipment longevity during seasonal storage
2 Editor's Choice

Briggs & Stratton 100074 Sae 5W-30 Synthetic Small Engine Motor Oil

BRIGGS & STRATTONBrand 100074Model 8.88H*4.38L*4.38W inchesDimension
Ranked #11 in Best Synthetic Motor Oils Of 2024
Ranked #16 in Best Semi Truck Engine Oil Of 2024
Briggs & Stratton 100074 Sae 5W-30 Synthetic Small Engine Motor Oil cover
Briggs & Stratton 100074 Sae 5W-30 Synthetic Small Engine Motor Oil thumb #1Briggs & Stratton 100074 Sae 5W-30 Synthetic Small Engine Motor Oil thumb #2
9.6We rank the products based on several factors, like features, price, customer reviews, and so on.
Rating: Excellent Price: $
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Visit Store » Amazon.com ( 4.68 / 5 )
Features
  • 100% Synthetic SAE 5W-30
  • For Use In All Air Cooled 4-cycle Engines
  • 32 Oz. bottle
3 Editor's Choice

Honda 08207-10W30 Motor Oil 10W30 Qt

HONDABrand 08207-10W30Model 19.0H*37.0L*27.0W inchesDimension
Honda 08207-10W30 Motor Oil 10W30 Qt cover
Honda 08207-10W30 Motor Oil 10W30 Qt thumb #1Honda 08207-10W30 Motor Oil 10W30 Qt thumb #2Honda 08207-10W30 Motor Oil 10W30 Qt thumb #3Honda 08207-10W30 Motor Oil 10W30 Qt thumb #4
9.5We rank the products based on several factors, like features, price, customer reviews, and so on.
Rating: Excellent Price: $$
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Visit Store » A-Ok Power ( 4.73 / 5 )
Features
  • Honda genuine oil is engineered for today's high revving 4-stroke engines
  • Protect your investment with this unique blend of costly sheer-stable polymer additives, top quality base stocks, engineered by Honda to resist viscosity and thermal breakdown
  • Honda genuine oil exceeds all requirements for API service classifications SM, all new Honda power equipment
  • Designed to meet the needs of your power equipment
4

Generac FBA_0J5140 Full Synthetic Motor Oil 5W-30 Sn Quart Bottle Part# 0J5140

GENERACBrand FBA_0J5140Model
Generac FBA_0J5140 Full Synthetic Motor Oil 5W-30 Sn Quart Bottle Part# 0J5140 cover
Generac FBA_0J5140 Full Synthetic Motor Oil 5W-30 Sn Quart Bottle Part# 0J5140 thumb #1Generac FBA_0J5140 Full Synthetic Motor Oil 5W-30 Sn Quart Bottle Part# 0J5140 thumb #2
9.2We rank the products based on several factors, like features, price, customer reviews, and so on.
Rating: Excellent Price: $$
Check On Amazon Search On eBay
Visit Store » BrandNewEngines, Inc ( 4.76 / 5 )
Features
  • Generac SYNTHETIC OEM Oil (1 Quart)
  • Protects against the formation of sludge & varnish deposits
  • High quality synthetic base fortified w/ an advanced additive
  • Maximum protection against viscosity breakdown
5

Generac 0J5140 X 2 + 70185E + FP 5W-30 Full Synthetic Oil Change Kit 2 Quarts Oil And Filter

GENERACBrand 0J5140 x 2 + 70185E + FPModel 2.0H*6.0L*2.0W inchesDimension
Generac 0J5140 X 2 + 70185E + FP 5W-30 Full Synthetic Oil Change Kit 2 Quarts Oil And Filter cover
Generac 0J5140 X 2 + 70185E + FP 5W-30 Full Synthetic Oil Change Kit 2 Quarts Oil And Filter thumb #1Generac 0J5140 X 2 + 70185E + FP 5W-30 Full Synthetic Oil Change Kit 2 Quarts Oil And Filter thumb #2Generac 0J5140 X 2 + 70185E + FP 5W-30 Full Synthetic Oil Change Kit 2 Quarts Oil And Filter thumb #3Generac 0J5140 X 2 + 70185E + FP 5W-30 Full Synthetic Oil Change Kit 2 Quarts Oil And Filter thumb #4Generac 0J5140 X 2 + 70185E + FP 5W-30 Full Synthetic Oil Change Kit 2 Quarts Oil And Filter thumb #5Generac 0J5140 X 2 + 70185E + FP 5W-30 Full Synthetic Oil Change Kit 2 Quarts Oil And Filter thumb #6Generac 0J5140 X 2 + 70185E + FP 5W-30 Full Synthetic Oil Change Kit 2 Quarts Oil And Filter thumb #7
9.0We rank the products based on several factors, like features, price, customer reviews, and so on.
Rating: Very Good Price: $$$
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Visit Store » BrandNewEngines, Inc ( 4.76 / 5 )
Features
  • Generac SYNTHETIC OEM Oil (2 Quarts)
  • 70185E OEM Oil Filter
  • Oil absorbent pad to prevent spilling on floors and other surfaces
6

Yamaha LUB-10W30-GG-12 Yamalube Golf Car And Generator Oil 10W-30

YAMAHABrand LUB-10W30-GG-12Model 2.0H*2.0L*6.0W inchesDimension 0.5 lbWeight
Yamaha LUB-10W30-GG-12 Yamalube Golf Car And Generator Oil 10W-30 cover
Yamaha LUB-10W30-GG-12 Yamalube Golf Car And Generator Oil 10W-30 thumb #1Yamaha LUB-10W30-GG-12 Yamalube Golf Car And Generator Oil 10W-30 thumb #2
9.0We rank the products based on several factors, like features, price, customer reviews, and so on.
Rating: Very Good Price: $
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Visit Store » Cyclemax ( 4.71 / 5 )
Features
  • Specially formulated mineral base oil and additive system
  • Used for the rigors of a constant load and frequent start-ups as found with the normal operation of a golf car or generator
  • Performance All Purpose Engine Oil SAE 10W-30
  • Quantity - (1) Quart
  • Fit type - Universal Fit
7

Triax TRX4T30 Power 4-Stroke 30W Full Synthetic, 4 Stroke Full Synthetic Small Engine Oil

TRIAXBrand TRX4T30Model 4.3H*7.44L*11.6W inchesDimension 7.88 lbWeight
Triax TRX4T30 Power 4-Stroke 30W Full Synthetic, 4 Stroke Full Synthetic Small Engine Oil cover
Triax TRX4T30 Power 4-Stroke 30W Full Synthetic, 4 Stroke Full Synthetic Small Engine Oil thumb #1Triax TRX4T30 Power 4-Stroke 30W Full Synthetic, 4 Stroke Full Synthetic Small Engine Oil thumb #2Triax TRX4T30 Power 4-Stroke 30W Full Synthetic, 4 Stroke Full Synthetic Small Engine Oil thumb #3Triax TRX4T30 Power 4-Stroke 30W Full Synthetic, 4 Stroke Full Synthetic Small Engine Oil thumb #4Triax TRX4T30 Power 4-Stroke 30W Full Synthetic, 4 Stroke Full Synthetic Small Engine Oil thumb #5Triax TRX4T30 Power 4-Stroke 30W Full Synthetic, 4 Stroke Full Synthetic Small Engine Oil thumb #6Triax TRX4T30 Power 4-Stroke 30W Full Synthetic, 4 Stroke Full Synthetic Small Engine Oil thumb #7Triax TRX4T30 Power 4-Stroke 30W Full Synthetic, 4 Stroke Full Synthetic Small Engine Oil thumb #8
8.8We rank the products based on several factors, like features, price, customer reviews, and so on.
Rating: Very Good Price: $$$
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Visit Store » TRIAX Lubricants LLC ( 4.83 / 5 )
Features
  • 2x the Zinc of other fluids, including OEM; No other product has this level of wear protection
  • Quiet engine operation, low or no smoke, and excellent protection under high loads
  • Commercial grade - very high shear stability and long life; Protects hard working small engines during very long hours of operation
  • Works on all small engines needing a 5W-30, 10W-30, or SAE 30W engine oil - lawn mowers, compressors, lawn tractors, log splitters, pressure washers, and generators
  • All Season - 40 F to 130 F ambient temperatures
  • Excellent deposit control prevents soot and gunk formation; Prevents valve sticking and engine damage
8

Cummins 326-5336 Nw Cummins 3265336 Onan Sae 15W-40 Oil

CUMMINSBrand 326-5336Model 2.75H*9.0L*4.25W inchesDimension 1.0 lbWeight
Cummins 326-5336 Nw Cummins 3265336 Onan Sae 15W-40 Oil cover
8.6We rank the products based on several factors, like features, price, customer reviews, and so on.
Rating: Very Good Price: $$
Save 8% + FreeShipping
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Visit Store » Amazon.com ( 4.68 / 5 )
Features
  • 32 oz. factory tested oil
  • Reduces consumption and engine wear
  • Provides maximum protection for engines
  • Fit type - Universal
9

Honda 08213-10W30 Oil - 12 Oz

HONDABrand 08213-10W30Model 4.41H*1047.0L*4.84W inchesDimension
Honda 08213-10W30 Oil - 12 Oz cover
Honda 08213-10W30 Oil - 12 Oz thumb #1Honda 08213-10W30 Oil - 12 Oz thumb #2Honda 08213-10W30 Oil - 12 Oz thumb #3
8.4We rank the products based on several factors, like features, price, customer reviews, and so on.
Rating: Very Good Price: $$
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Visit Store » Jorgensen Powersports ( 4.9 / 5 )
Features
  • Genuine OEM Honda oil
  • 12 oz bottle
  • Pack of 2
10

Royal Purple 1130 01130 10W30 Synthetic Oil

ROYAL PURPLEBrand 1130Model 8.75H*4.0L*2.0W inchesDimension
Royal Purple 1130 01130 10W30 Synthetic Oil cover
8.4We rank the products based on several factors, like features, price, customer reviews, and so on.
Rating: Very Good Price: $
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Visit Store » Amazon.com ( 4.68 / 5 )
Features
  • Better wear protection
  • Increased fuel efficiency
  • Better protection of the expensive catalytic emission system
  • Improved compatibility with fuels containing ethanol
  • Superior corrosion protection
11

Honda 08213-10W30 Oil - 12 Oz

HONDABrand 08213-10W30Model 2.0H*9.0L*6.0W inchesDimension 0.78 lbWeight
Honda 08213-10W30 Oil - 12 Oz cover
8.3We rank the products based on several factors, like features, price, customer reviews, and so on.
Rating: Very Good Price: $
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Visit Store » E Stribute ( 4.89 / 5 )
Features
  • Genuine OEM Honda oil
  • 12 oz bottle
12

Honda HPOKEU2000 08207-10W30 Kit

HONDABrand HPOKEU2000Model
Honda HPOKEU2000 08207-10W30 Kit cover
Honda HPOKEU2000 08207-10W30 Kit thumb #1Honda HPOKEU2000 08207-10W30 Kit thumb #2Honda HPOKEU2000 08207-10W30 Kit thumb #3Honda HPOKEU2000 08207-10W30 Kit thumb #4
8.3We rank the products based on several factors, like features, price, customer reviews, and so on.
Rating: Very Good Price: $$
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Visit Store » MPartsman ( 4.92 / 5 )
Features
  • Kit includes - 1 Quart Genuine Honda Oil 10W30 (08207-10W30), 1 Honda Spark Plug (98056-55777) - CR5HSB, and 1 Genuine Honda Air Filter (17211-Z07-000)
  • Genuine OEM Honda Parts
13

Champion 100162119 Full Synthetic Motor Oil 5W-30 Quart Bottle

CHAMPIONBrand 100162119Model
Champion 100162119 Full Synthetic Motor Oil 5W-30 Quart Bottle cover
8.3We rank the products based on several factors, like features, price, customer reviews, and so on.
Rating: Very Good Price: $
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Visit Store » BrandNewEngines, Inc ( 4.76 / 5 )
Features
  • Quart 5W-30 4-Cycle Full Synthetic Motor Oil
  • Specially formulated for all 4-cycle air-cooled engines
14

Cummins 3265336 Onan Sae 15W-40 Oil - 1 Quart

CUMMINSBrand 3265336Model
Cummins 3265336 Onan Sae 15W-40 Oil - 1 Quart cover
Cummins 3265336 Onan Sae 15W-40 Oil - 1 Quart thumb #1
8.3We rank the products based on several factors, like features, price, customer reviews, and so on.
Rating: Very Good Price: $$$
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Visit Store » Intuitive. ( 4.85 / 5 )
Features
  • Cummins 3265336 Onan SAE 15W-40 Oil - 1 Quart (Quantity 3)
15

Generac 0J5140 X 3 Full Synthetic Motor Oil 5W-30 Sn Quart Bottle Part# 0J5140

GENERACBrand 0J5140 x 3Model 10.0H*10.0L*4.0W inchesDimension
Generac 0J5140 X 3 Full Synthetic Motor Oil 5W-30 Sn Quart Bottle Part# 0J5140 cover
Generac 0J5140 X 3 Full Synthetic Motor Oil 5W-30 Sn Quart Bottle Part# 0J5140 thumb #1
8.1We rank the products based on several factors, like features, price, customer reviews, and so on.
Rating: Very Good Price: $$$
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Visit Store » BrandNewEngines, Inc ( 4.76 / 5 )
Features
  • Generac SYNTHETIC OEM Oil (3 Quarts)
16

Champion 100162119 X 2 + 101766 Generator 5W-30 Full Synthetic Oil Change Kit 2 Quarts Oil And Filter

CHAMPIONBrand 100162119 x 2 + 101766Model 4.0H*19.0L*4.0W inchesDimension
Champion 100162119 X 2 + 101766 Generator 5W-30 Full Synthetic Oil Change Kit 2 Quarts Oil And Filter cover
8.1We rank the products based on several factors, like features, price, customer reviews, and so on.
Rating: Very Good Price: $$$
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Visit Store » BrandNewEngines, Inc ( 4.76 / 5 )
Features
  • 2 Quarts 5W-30 4-Cycle Full Synthetic Motor Oil
  • Specially formulated for all 4-cycle air-cooled engines
  • 101766 (717.153000.02) Champion Oil Filter
  • Fits 12.5kw Standby models serial 17NOV0201146 and after
  • Fits 14kw Standby models serial 17JUL0500540 and after
17

Maintenance 3 Pk Kohler Engine 10W30 Synthetic Blend Motor Oil 1 Quart Bottles

MAINTENANCEBrand
Maintenance 3 Pk Kohler Engine 10W30 Synthetic Blend Motor Oil 1 Quart Bottles cover
7.9We rank the products based on several factors, like features, price, customer reviews, and so on.
Rating: Good Price: $$$
Save 5%
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Visit Store » Pitt Auto Electric Co ( 4.73 / 5 )
More On Amazon..
18

Pennzoil 550045214 Motor Oil 10W-30 Motor Oil

PENNZOILBrand 550045214Model 13.5H*14.52L*8.62W inchesDimension 0.0 lbWeight
Ranked #10 in Best Car Motor Oil Of 2024
Pennzoil 550045214 Motor Oil 10W-30 Motor Oil cover
Pennzoil 550045214 Motor Oil 10W-30 Motor Oil thumb #1Pennzoil 550045214 Motor Oil 10W-30 Motor Oil thumb #2Pennzoil 550045214 Motor Oil 10W-30 Motor Oil thumb #3
7.9We rank the products based on several factors, like features, price, customer reviews, and so on.
Rating: Good Price: $$
Save 39% + FreeShipping
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Visit Store » Amazon.com ( 4.68 / 5 )
Features
  • 10W-30 motor oil formulated to keep engines clean and responsive
  • Provides proven wear protection (based on Sequence IVA wear test using SAE 5W-30)
  • Helps prevent dirt and contaminants from turning into performance-robbing deposits
  • Compatible with engine seals and all conventional oils
  • Suitable for all car, SUV, light van, and truck gasoline engines under all driving conditions
  • Limited warranty coverage of up to 10 years or 300,000 miles*, whichever comes first
  • Meets or exceeds the following industry requirements - API SP-Resource Conserving and all previous categories; ILSAC GF-6A
  • Meets or exceeds the following OEM specifications - Chrysler MS-6395
  • For a full list of equipment approvals and recommendations, please consult your local Shell Technical Help Desk and always consult your owners manual
19

Royal Purple 11487 High Performance Engine Break-In Oil

ROYAL PURPLEBrand 11487Model 3.58H*8.77L*5.0W inchesDimension 0.0 lbWeight
Royal Purple 11487 High Performance Engine Break-In Oil cover
7.9We rank the products based on several factors, like features, price, customer reviews, and so on.
Rating: Good Price: $
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Visit Store » Amazon.com ( 4.68 / 5 )
Features
  • Package Dimensions - 23.190 H x 7.797 L x 11.988 W (centimetres)
  • Excellent for flat tappet and roller cam engines
  • Package Weight - 0.794 kilograms
  • Country of Origin - United States
20

Wen 55201 Magnetic Oil Dipstick For Inverter Generators

WENBrand 55201Model 1.0H*3.0L*1.13W inchesDimension 0.11 lbWeight
Wen 55201 Magnetic Oil Dipstick For Inverter Generators cover
Wen 55201 Magnetic Oil Dipstick For Inverter Generators thumb #1Wen 55201 Magnetic Oil Dipstick For Inverter Generators thumb #2Wen 55201 Magnetic Oil Dipstick For Inverter Generators thumb #3Wen 55201 Magnetic Oil Dipstick For Inverter Generators thumb #4
7.7We rank the products based on several factors, like features, price, customer reviews, and so on.
Rating: Good Price: $
Save 37% + FreeShipping
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Visit Store » Amazon.com ( 4.68 / 5 )
Features
  • Preserve your inverter generator by keeping metal out of the engine
  • Industrial-strength magnetic tip collects metal shavings floating in your generators oil tank
  • Machined to fit the WEN Inverter Generators between 1000 and 4000 watts (check model number compatibility below)
  • Universal design measures in at M18 x 2.5, making it compatible with the majority of inverter generators on the market
  • Fits the WEN 56125i, WEN 56200i, WEN 56202i, WEN 56203i, WEN 56225i, WEN 56235i, WEN 56310i, WEN 56310i-RV, WEN 56380i, WEN GN400i, WEN DF400i, Yamaha EF2000iS, Yamaha EF1000iS, Generac IQ2000, Powerhorse 42411 and the Predator 2000

Best Generator Oils Of 2024 Rating

Top Reviewed Generator Oils

Popular Related

FAQ & Notes

Tom Ramsey Written By Tom Ramsey

During our research, we found more than 465 related products, with prices ranging from $8.59 to $46.9, and most customers would pay around $21 for this type of product.

What are the top brands of Generator Oils?

There are 12 brands available for Generator Oils, such as Cummins, Generac, Yamaha, Honda, Champion, Royal Purple, Briggs & Stratton, Pennzoil, Stp, Maintenance, Wen, Triax.

What are the available sellers for Generator Oils?

There are 10 sellers available for Generator Oils, including Amazon.com ( 4.68 / 5 ), E Stribute ( 4.89 / 5 ), Intuitive. ( 4.85 / 5 ), Cyclemax ( 4.71 / 5 ), BrandNewEngines, Inc ( 4.76 / 5 ), A-Ok Power ( 4.73 / 5 ), Jorgensen Powersports ( 4.9 / 5 ), TRIAX Lubricants LLC ( 4.83 / 5 ), MPartsman ( 4.92 / 5 ), Pitt Auto Electric Co ( 4.73 / 5 ).

Price comparison of the top 10 Generator Oils

*Note: Prices based on historical data.

Price comparison of the top 10 Generator Oils highly recommended

*Note: Prices based on historical data.

The Verdict

After thorough consideration, we have selected the product STP 18588 as your preferred option.

As an alternative, we have also compiled a list based on user reviews, and the product PENNZOIL 550045214 is also worthy of your purchase.