Best Synthetic Oil For Generac Generator: image
Editor's Pick

Improved compatibility with fuels containing ethanol. These products are available in various sizes, shapes, and colors. The product range includes petrol, diesel, gasoline, and LPG. It is also compatible with bio-diesel. Diesel engines have been upgraded to meet the stricter European Union norms. Notably, this comes amid reports of increased emissions due to carbon monoxide (CO2) emission standards. Diesel has an estimated life of 25 years.

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Cummins Onan Oil and Service/Maintenance Chemicals have been approved by the Indian government for use in generating power. The oil is designed to reduce the consumption due to high temperatures due to oil oxygenation and vibration. It contains no harmful chemicals or additives, and can be safely stored at room temperature for up to 10 days. Notably, the diesel engine has been tested under SAE 15W-40 standards. Diesel engines are considered “highly efficient” when operating at low temperatures. However, it may not last for long

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Briggs & Stratton SAE 30W Engine Oil is recommended for use in modern diesel engines. The oil has been tested and approved by the API, which ensures that it meets all safety standards. It contains no harmful chemicals or additives. Not suitable for use in petrol engines. This product is not intended to be used in any way other than as directed by the manufacturer.

Best Synthetic Oil For Generac Generator

Top 7 Best Synthetic Oil For Generac Generator

1
Why we chose it
  • High quality synthetic base fortified w/ an advanced additive
  • Generac SYNTHETIC OEM Oil (1 Quart)
  • Protects against the formation of sludge & varnish deposits
  • Maximum protection against viscosity breakdown
Generac Full Synthetic Motor Oil 5W-30 SN Quart Bottle Part# 0J5140 (qt): image
96%
customers recommend this product
4.8/ 5
Sheerness4.6
Mileage4.6
Value for money4.4
2
Why we chose it
  • Corrosion inhibitor promotes equipment longevity during seasonal storage
  • Detergents help keep engine components clean
  • Anti-wear technology provides a layer of protection at high temperatures to help prevent engine wear
  • High quality base oil cushion parts to protect against friction and helps control engine oil viscosity over the oil drain period
  • Antioxidants fight thermal breakdown to enhance oil durability
STP 4 Cycle Oil Formula, Engine Care for Lawnmower, Push Mower & Tractor, Bottles, 32 Fl Oz, 18589: image
96%
customers recommend this product
4.8/ 5
Longevity4.8
Mileage4.5
Value for money4.5
3
Why we chose it
  • 326-5336
Cummins 3265336 Onan SAE 15W-40 Oil - 1 Quart (Quantity 4): image
96%
customers recommend this product
4.8/ 5
4

Briggs & Stratton 30W Engine Oil – 48 Oz. 100028

8,607 ratings | 10 offers | 8,607 Reviews
Price: $7.94$23.95
Why we chose it
  • Tested and approved by Briggs & Stratton engineers
  • Conveniently sized for today’s engines
  • Warranty certified and recommended in all Briggs & Stratton manuals
  • A high quality detergent oil classified SJ/CD by the API
  • 48 Fl. oz. (1.418 L)
Briggs & Stratton 30W Engine Oil - 48 Oz. 100028: image
96%
customers recommend this product
4.8/ 5
Sheerness4.7
Value for money4.6
Longevity4.6
Mileage4.5
Top Pick
5

ROYAL PURPLE 15W40 Synthetic Diesel Motor Oil 1 Quart

598 ratings | 17 offers | 598 Reviews
Price: $8.99$28.78
Why we chose it
  • Increased fuel efficiency
  • Improved compatibility with fuels containing ethanol
  • Superior corrosion protection
  • Better wear protection
  • Better protection of the expensive catalytic emission system
ROYAL PURPLE 15W40 Synthetic Diesel Motor Oil 1 Quart: image
98%
customers recommend this product
4.9/ 5
Longevity5
Mileage4.5
Value for money4.2
6

Honda 08207-10W30 Motor Oil

433 ratings | 12 offers | 433 Reviews
Price: $6.3$15.88
Why we chose it
  • 10W30
  • Genuine Honda Oil
Honda 08207-10W30 Motor Oil: image
96%
customers recommend this product
4.8/ 5
7

Chevron 39086 Delo 400 SAE 15W-30 Motor Oil – 1 Gallon

81 ratings | 2 offers | 81 Reviews
Price starts from: $43.5
Why we chose it
  • Lower oil costs
  • Simplified inventory and dispensing system
  • Long oil, filter and engine life
  • Wear protection
  • Superior engine cleanliness
Chevron 39086 Delo 400 SAE 15W-30 Motor Oil - 1 Gallon: image
96%
customers recommend this product
4.8/ 5
Top Pick
ROYAL PURPLE 15W40 Synthetic Diesel Motor Oil 1 Quart
These products on exceptionally high order fulfillment rates, breadth of available products and these are also complete line of Heavy-Duty Shop Products that will bring you years of reliable performance.
Ranking the Brands
Generac: 14.29%
STP: 14.29%
Onan: 14.29%
Briggs & Stratton: 14.29%
Royal Purple: 14.29%
Honda: 14.29%
Chevron: 14.29%

Comparison Table

Сomparison: Generac Full Synthetic Motor Oil 5W-30 SN Quart Bottle Part# 0J5140 (qt): imageСomparison: STP 4 Cycle Oil Formula, Engine Care for Lawnmower, Push Mower & Tractor, Bottles, 32 Fl Oz, 18589: imageСomparison: Cummins 3265336 Onan SAE 15W-40 Oil - 1 Quart (Quantity 4): imageСomparison: Briggs & Stratton 30W Engine Oil - 48 Oz. 100028: imageСomparison: ROYAL PURPLE 15W40 Synthetic Diesel Motor Oil 1 Quart: imageСomparison: Honda 08207-10W30 Motor Oil: imageСomparison: Chevron 39086 Delo 400 SAE 15W-30 Motor Oil - 1 Gallon: image
Generac Full Synthetic Motor Oil 5W-30 SN Quart Bottle Part# 0J5140 (qt)STP 4 Cycle Oil Formula, Engine Care for Lawnmower, Push Mower & Tractor, Bottles, 32 Fl Oz, 18589Cummins 3265336 Onan SAE 15W-40 Oil – 1 Quart (Quantity 4)Briggs & Stratton 30W Engine Oil – 48 Oz. 100028ROYAL PURPLE 15W40 Synthetic Diesel Motor Oil 1 QuartHonda 08207-10W30 Motor OilChevron 39086 Delo 400 SAE 15W-30 Motor Oil – 1 Gallon
Package InformationBottleBottleBottleBottleBottleBottleJug
Viscosity5w-3015w-4015w-4010w-30
BrandGeneracSTPOnanBriggs & StrattonRoyal PurpleHondaChevron
Liquid Volume32 Fluid Ounces32 Fluid Ounces32 Fluid Ounces48 Fluid Ounces1 Quarts1 Quarts1 Gallons
ManufacturerGeneracSTPBriggs & StrattonRoyal PurpleHondaDelo
Item Weight1.9 pounds2.05 pounds8 pounds2.63 pounds1.3 pounds2.05 pounds7.63 pounds
Package Dimensions8.75 x 4.25 x 2.25 inches9.7 x 4.3 x 2.4 inches11 x 7.7 x 4.3 inches
Is Discontinued By ManufacturerNoNoNoNoNo
Product Dimensions4.3 x 8 x 8.8 inches4.5 x 4.5 x 8.5 inches6.57 x 2.57 x 0.39 inches2.44 x 4.13 x 10.63 inches

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