Rank	Product	Result
1	Zep	1
2	OxiClean	2
3	Simple Green Pro HD	3
4	WD-40 Specialist	4
5	Simple Green Aircraft	5
6	Oil Eater	6
7	Super Clean	7
8	Spitfire	8
9	LA's Totally Awesome	9
10	Purple Power	10
11	Krud Kutter	11
12	Dawn Ultra Platinum	12
13	Goof Off	13

	Name	Purchased for ($)	Link	Made In
	OxiClean	$23.00	Search on Amazon	USA
Cleaner and degreaser that needs no dilution for severe jobs, used here at full strength. Best overall across the four tests — second on the oil-soaked cloth and first on oil-stained concrete. The most expensive bottle in the lineup at $23.
	Zep	$12.00	Search on Amazon	USA
Concentrated heavy-duty citrus degreaser, which the label allows at full strength on tough soils. First of 13 on the oil-soaked cloth test, fifth on hardened grease, and a 1.5 mildew rating, for second place overall at $12.
	Super Clean	$6.00	Search on Amazon
Arrives ready to use in a spray bottle with no dilution required. First on hardened grease and tied for the best mildew rating of 1, giving it the best three-test average in the comparison at 2.67 — from the cheapest bottle here at $6.
	Oil Eater	$14.00	Search on Amazon	USA
Professional-strength concentrate, mixed here at 50% water and 50% product. Second on hardened grease with a 1.5 mildew rating, and third on the three-test average at 3.33. $14.
	Spitfire	$17.00	Search on Amazon
Heavy-duty formula that needs no dilution. Fourth on hardened grease, fourth on concrete stain removal, and tied for the best mildew rating of 1 — second on the three-test average at 3.00. $17.
	LA's Totally Awesome	$20.00	Search on Amazon	USA
Dilutable cleaner with a scale printed on the container; full strength is the label recommendation for engine use and is what was used here. Third on hardened grease and fifth on oil-stained concrete. $20.
	Simple Green Pro HD	$22.00	Search on Amazon
Professional-grade concentrate diluted 1 part product to 3 parts water for heavy cleaning; one bottle makes up to 14 gallons of working solution. Third on the oil-soaked cloth test and eighth on hardened grease. $22.
	WD-40 Specialist	$14.00	Search on Amazon	USA
Grease remover rated safe on sensitive metals and biodegradable, used at full strength with a few minutes of dwell time. Fourth on the oil-soaked cloth test and ninth on hardened grease. $14.
	Simple Green Aircraft	$22.00	Search on Amazon
Aircraft cleaner diluted 1 part product to 3 parts water for heavy-duty work. Second on oil-stained concrete and fifth on the oil-soaked cloth test, but 12th of 13 on hardened grease. $22.
	Purple Power	$7.00	Search on Amazon	USA
Concentrated industrial-strength cleaner and degreaser, used at full strength as the instructions allow. Third on oil-stained concrete but 11th of 13 on hardened grease. $7.
	Krud Kutter	$9.00	Search on Amazon	USA
Non-toxic, biodegradable cleaner used at full strength. Seventh on hardened grease, where it broke down more than most of the products below it, and 11th on the oil-soaked cloth test. $9.
	Dawn Ultra Platinum	$6.00	Search on Amazon
Household dish detergent, mixed at the label rate of 1 teaspoon per gallon of water and included as a benchmark against the dedicated degreasers. Tenth on hardened grease and 12th of 13 on the oil-soaked cloth test. $6 for 32.7 oz.
	Goof Off	$18.00	Search on Amazon	USA
Concrete cleaner diluted to 1.5 oz per gallon of water per its instructions. Last of 13 on both the oil-soaked cloth and the hardened grease tests, though both put it well outside the concrete surface it is formulated for. $18.

Best Degreaser: 13 Cleaners Tested on Oil, Grease, Mildew, and Concrete

Top Picks

Oil-Soaked Cloth Cleaning

Hardened Grease Dissolving

Mildew Removal Rating

Oil-Stained Concrete Cleaning

Price

The Verdict

Related Tests

Top Picks

Oil-Soaked Cloth Cleaning

Hardened Grease Dissolving

Mildew Removal Rating

Oil-Stained Concrete Cleaning

Price

The Verdict