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How Much Blue Devil Should I Use

Blue Devil is a product that is used to repair leaks in radiators and engines. It is a permanent fix that will save you money in the long run. But, how much Blue Devil should you use? In this blog post, we will explore how much Blue Devil you should use to repair your radiator or engine. We will also provide some tips on how to properly apply Blue Devil so that you can get the best results.

What is Blue Devil?

Blue Devil is a highly concentrated, professional strength formula that permanently seals and repairs leaks in metal and aluminum radiators, heater cores, gaskets, freeze plugs, seams and connections. It works with all types of antifreeze and prevents overheating and corrosion. Blue Devil is safe for all engines including those with cast iron blocks.

What is the correct amount of Blue Devil to use?

When it comes to using Blue Devil, it is important to use the correct amount. This will ensure that your engine is properly sealed and will not leak oil. If you use too little Blue Devil, your engine may still leak oil. If you use too much Blue Devil, your engine may overheat and damage itself. The correct amount of Blue Devil to use depends on the size of your engine. For a standard car engine, you should use 1/2 quart of Blue Devil. For a larger car engine, you should use 1 quart of Blue Devil. For a truck or SUV engine, you should use 2 quarts of Blue Devil.

How often should I use Blue Devil?

If your car is older, has more than 100,000 miles on it, or burns oil, you may need to use Blue Devil more often. For newer cars with less than 50,000 miles, you may only need to use Blue Devil once a year.

What are the side effects of Blue Devil?

The side effects of Blue Devil are minimal when used as directed. Some users may experience mild stomach upset, headache, dizziness, or skin irritation. These side effects should subside within a few days of continued use. If you experience more severe side effects such as chest pain, shortness of breath, or fainting, discontinue use and seek medical attention immediately.


Blue Devil is a great product to use when you have a leak in your radiator. It is important to follow the instructions on the back of the bottle, and to make sure that you use the correct amount for your particular radiator. Overusing Blue Devil can damage your engine, so it is important to be precise when measuring. If you have any questions, it is always best to consult with a qualified mechanic before using any type of sealant in your vehicle.