Best Engine Degreasers

POR-15 40101 Engine Cleaner Degreaser is about as potent and versatile as they come. According to the people behind the product, the formula here represents a breakthrough in metal cleaners. Well, we don't really care for lofty promises like "breakthrough" but we can't say that these people aren't on the money with that premise.

The formula is non-flammable and water-based. It does not incorporate noxious odors, chlorinated solvents, or petroleum products. With it, you'll be able to easily clean and degrease metal, wood, fiberglass, plastic, and different painted surfaces including but not limited to engines, fuel tanks, holding tanks, grease traps, and transformers.

On top of that, the solution works just as well on closed systems like air conditioning, compressor lines, boiler tubes, heat exchangers, and different coils. It will be able to remove grease, oil, and dirt from many different constructions and parts.

As far as we can tell, there are no major issues with the formula. The only thing we have a problem with is the bottle. More specifically, the cap that doesn't always seal that well after you pop it for the first time.

In short, POR-15 40101 water based degreaser is probably the best grease remover on the list. Its potency is off the charts. The formula is as safe as it is functional. There isn't much that the product won't allow you to clean and degrease.

Oil Eater Original delivers on the "oil-eating" promise. The formula is very well able to dissolve grease and oils from just about every surface. More importantly, it does so in the safest manner possible. The doesn't contain acids, abrasive, or petroleum solvents. The formula is water-based and biodegradable. You can use it with all systems, including septic. The solution is non-toxic, non-corrosive, non-hazardous, and USDA-approved for non-food surfaces.

Of course, we're talking about a concentrated product here, so make sure you're using the dilution chart available on the bottle to achieve maximum performance and value.

As far as household use is concerned, the product will be able to help you with laundry prespots, stoves, tubs and tiles, floors, carpets, grills and decks, siding, white wall tires, asphalt and concrete driveways, as well as with many other surfaces.

In terms of industrial uses, this engine cleaner will work wonders with engines (duh), different tools and machinery, floor scrubbers, pressure washers, exhaust hoods, and many different car parts. It will prove helpful for restaurants, production facilities, garages, HVAC, and more.

In other words, Oil Eater Original will prove just as useful in household, industrial, and commercial settings. The solution has a faint but pleasant smell to it, making the product the best engine degreaser for close quarters with limited airflow.

Sea Foam SS14 is a little less versatile than the previous products. This is an engine degreaser and cleaner first and foremost. It might be able to help you in other areas but the solution has been specifically designed to primarily work with 2- or 4-stroke gasoline engines (including but not limited to GDI engines, standard fuel injected engines, and carbureted engines).

It will be able to cure hesitation, pings, stalls, flat spots, and rough idle that comes from carbon buildup. The product makes it possible to easily clean intake valves, pistons, and combustion chamber deposits.

The can comes equipped with a red spray nozzle tube that features a curved adapter, making it easier to distribute the cleaner in limited spaces like the front part of the throttle plate location, fuel tanks, etc. Other than that, the curved adapter also works wonders reducing unnecessary consumption.

We're dealing with a flammable formula here that contents under pressure. That means, among other things, you have to make sure the cleaner doesn't interact with your skin, so don't forget to put on gloves beforehand.

All in all, we could recommend the Sea Foam SS14 engine degreaser and cleaner and lube to just about any and every car owner. Small-time and professional mechanics will likely find the product equally useful. It is cost-effective and practical enough for professional use.

Chemical Guys know their cleaning solutions and the CLD_201_16 Signature Series Orange Degreaser is no exception. The product's citrus-based formula will be able to handle the toughest jobs. It will help you clean engines, tools and machinery, tires, wheels, and different floors. The solution does an excellent job loosening and breaking down the toughest grease, dirt, oil, and grime for easy rinse afterward.

The product makes it very well possible to remove the nastiest stains and dirt, grease, and grime buildups from your car, truck, motorcycle, boat, and even RV. You'll be able to remove that gunk, dirt, and grime from your favorite tires to bring back that original sleek black look. You can use the solution to clean and restore your wrenches, ratchets, and screwdrivers' shine.

The formula is almost excessively concentrated. Its full strength should be reserved for the toughest assignments. Otherwise, we would recommend diluting it up to 20:1 for those lighter duty cleaning jobs that do not necessarily require too much strength.

As far as we're concerned, the only problem with the solution is that the citrus-based formula has a smell to it that some people may not find all too appealing. Other than that, Chemical Guys CLD_201_16 Signature Series Orange Degreaser doesn't leave much room for complaints. The product works very well with all modern-day and legacy automotive engines.

Gunk FEB1 Foamy is a really effective solution considering the very much affordable price tag it comes with. It isn't the best product on the list but it is definitely better than anything that comes at the same price. The solution's powerful foam will be able to cling to vertical surfaces and effectively lift dirt, grime, grease, and oil.

The thick foam will not do any damage to electrical components. Just let it soak for 10-15 minutes and hose it all off afterward. The formula's foaming action will be able to quickly remove dirt, dust, and road grime.

Furthermore, the product adds a protective layer with a nice satin shine finish that shields the engine parts against dust buildup and makes future cleanups easier.

Gunk FEB1 Foamy works very well with plastic engine parts, underhood rubber, and paint. However, keep in mind that the product doesn't necessarily work that well with metal parts. The product has been specifically designed for engine with plastic covers. We can't say that it isn't versatile though.

Provided the metal parts are covered, the solution will be able to help you with cars, trucks, RVs, ATVs, bikes, power mowers, marines, farm equipment, tractors, and many other machinery pieces.

To put it a little differently, Gunk FEB1 Foamy is cost-effective and versatile enough to justify a spot on this list. As far as budget engine cleaning products are concerned, this is about as good as it gets.