The 6 Best Gm Approved Def Fluids (2022 reviews)

The Hot Shots Secret Fuel System is capable of outshining several other fluids featured in this list in overall features. The hot shots secret fuel system is built with good products and it has noticed a difference. Stabilizers keep your fuel in good shape even if it sits for extended periods of time.edt is a completely ashless formula, creating no adverse effects on the engine and complying with federal requirements for low sulfur content. These products offer highly concentrated formulas that are much more effective than the diluted bottled products commonly found on the retail shelf.

Lastly, the hot shots secret fuel system is great with great stuff, works fast and it is very good.

Most buyers quickly discovered that the fluid can be used in furnace fuel oil for more efficient fuel utilization and a more trouble-free furnace operation without producing any harmful emissions. Furthermore, a few also found that the fluid is designed to be a daily or every fill up fuel treatment. Also, they say that the fluid is great with any diesel, including bio. Overall, many buyers have used the hot shots secret fuel system for more than a few months without any problems, and it shows no sign of giving up.

Top Customer Quotes:

This provides significantly increased ignition efficiency with all diesel fuels.
This will burn itself out a lot quicker than on the older trucks.
This works as advertised and it has more pep.
This maintains clean injectors, adds lubrication, neutralizes acids and keeps rust and corrosion at bay.

Best For Stiction Issues: Hot Shots Secret Gm Approved Def Fluid

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Hot Shots Secret has been making great fluids for years, thanks to a combination of clever design and appropriate materials. The Hot Shots Secret Gm Approved Def Fluid is very happy, is made with great stuff and it changed the oil. The Manufacturer says: Every bottle that leaves our facility is produced from start to finish at the lsi headquarters, in Mt. In addition, this is a fully formulated concentrated cleaner that removes all internal diesel injector deposits (idids) including waxy and polymeric deposits.

The fluid is used for diesel fuel lubricity, is great for a great price and it runs smoother. In addition, it is a unique blend of synthetic cleaner and a proprietary carbon nano lubricant that cleans stiction while reducing the coefficient of friction. Above all, the hot shots secret gm approved def fluid restores the throttle and boosts cetane up 7 points.

Almost all customers opine that the fluid works for stiction issues. And, they strongly agree that the fluid has helped greatly with shifting. And, a few also found that the fuel system cleaner will get rid of the build up. To sum up, many have used the hot shots secret gm approveddef fluid for more than a few months without any complaints, and it shows no sign of giving up.

Customers say that getting a gm approved def fluid, along with fluid is useful.

Top Customer Quotes:

This has improved mileage and it can make for a great combo.
Dirt and water in your fuel system steal the power from your diesel.
This lost power and it works as advertised.
This starts easier and it works great.

Best For All Diesel Cars: Blue Def Gm Approved Def Fluid

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The blue def GM approved def fluid's material feels more premium than its price would suggest. The Blue Def Gm Approved Def Fluid can be used in a scr system will reduce the levels of NOX emissions of those engines. Making sure you do not run out of in a scr equipped truck is simple, Watch the diesel exhaust fluid (def) gauge, which is part of the diesel fuel gauge, for when it is time to refill. These are the highest quality and safety standards in place to ensure optimum scr performance.

The fluid is a non-toxic solution of 67.5 percent purified water and 32.5 percent ultra pure automotive grade urea. Above all, the blue def gmapproved def fluid works great and it works as advertised.

Most buyers found that the fluid is good for all vehicles that require def. Moreover, they strongly agree that the fluid is suitable for ford diesel systems. In addition, they also found that the fluid works well and is good enough to fill a tank 1/4 full. Therefore, most customers call the fluid suits best, and no one questions it.

Top Customer Quotes:

This does its job correctly, there really isn't much to say.
One gallon of is used approximately every 300 miles.
This can be used in all diesel engines.
This is an easy to use funnel.

Best For Spill Proof: Adblue Gm Approved Def Fluid

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The Adblue Gm Approved Def Fluid might be a relatively new release, but it's still nothing short of impressive this year. In addition, it is designed to be spill - proof and it is very good. Approved for bmw audi vw mazda and other diesels that require emissions fluid. Above all, the adblue gm approveddef fluid works great and it can get for the same price.

Almost all buyers found that the fluid is the oem fluid for all European products. In addition, they also found that the fluid will cause your system to become contaminated. In addition, they strongly agree that the def fluid itself will work, the design of the screw mount mechanism that inserts into the def tank needs to be compatible.

Customers discovered that getting a def fluid cost, along with fluid is useful.

Top Customer Quotes:

This is the correct deffluid for your mb gl350.
This will last 44 months and also comes in a 3 gal jug.
Blue tec engines starting in 2010.
This is designed for specific application for diesel Mercedes Benz, and other European diesels.

Best For Diesel Truck: Acdelco Gm Approved Def Fluid

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The Acdelco Gm Approved Def Fluid might be a relatively new release, but it's still nothing short of impressive this year, thanks to multiple price cuts and added new features over the past few months. The Acdelco gmapproved def fluid is strong and it is easy to pour. Acdelco offers a full range of oils, fluids, and vehicle care products to protect, enhance, and maintain your automobile. Also, the fluid is the true general motors original equipment parts brand, infusing a century of experience, innovation and quality into more than 90, 000 gm oe and other parts.

Above all, the acdelco gm approved deffluid is manufactured to meet expectations for fit, form and function, offering high quality and great value.

Almost all customers quickly discovered that the fluid can be used in any diesel system which requires def. Furthermore, a few also found that the fluid is covered under warranty but do save a few extra bucks on a $45, 000 truck, get the good stuff. Moreover, a few say that the fluid is 2 2.5 gallon jugs. In short, buyers found this to be one of the best fluids for daily purposes.

Top Customer Quotes:

This is kept in air-conditioning storage and is fresh, will be very fresh at 75.
This is used to help convert nox, an environmental pollutant, into harmless nitrogen and water.
It has 1 complimentary nozzle. Extra nozzles are sold separately.
There is only one but the package says it is 48 lbs.

Best Easy To Use: Premium Blue Def Gm Approved Def Fluid

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The Premium Blue Def Gm Approved Def Fluid's superior materials makes sure that it ages well with use. Make sure this fits by entering your model number. In addition, the fluid has flawless delivery and it checks the date. To sum up, with a 4.2 rating and more than 704 buyers, the premium blue def GM approved def fluid stands as the best choice.

One customer says - "All defs are created equal, because they have the same simple formula. ". Most buyers agree that the fluid will work quite well.

Why We Like This:

Vehicles with scr code u42, meet iso spec: 22241-1.
Urea solution to fill urea storage tank.
Blue tec engines starting in 2010.
Approved for bmw audi vw mazda and all other diesels that require emissions fluid.