Aug 12, 2015. What is the best head gasket sealer - GARAGE BEAST As with oil, coolant loses its ability to keep things cool as it ages. Think about it: you won't have to worry about that part causing problems ever again. Sometimes a sealant will do the job, and sometimes you need to invest in a new head gasket. For minor leaks, head gasket sealers can provide a permanent fix while saving you a lot of money. These products work quickly, provide a permanent fix, and cost just a fraction of the price of a replacement head gasket. Diesel and gasoline engines are distinct from each other. Use the whole bottle mixed with 3 quarts of water. Be aware that some products are stronger than others, so you must use the right amount to avoid causing further damage. Extensive draining and flushing is required, and the cooling system must be left for 24 hours to dry out after use. Bar's Leak HG-1 HEAD SEAL Blown Head Gasket Repair One of the most versatile entries on our list comes in the form of the Bar's Leak HG-1. Step 4: Replace the cap. Most good head gasket sealers are suitable for both fuel types. This saves you the chore of draining and flushing your coolant system. This gasket sealer and belt dressing comes in both an eight-ounce and four-ounce can and is known for featuring an image of a young woman on it. While its most effective at fixing head gaskets, this product can also repair block leaks and cracked seals thats useful if youre not 100% sure of where the leak is coming from. The manufacturer claims that this product is the first and only head gasket sealant that actually penetrates the pores of the head gasket. 1. There are 7 steps to follow when using this product, which includes draining the system of coolant, performing multiple flushes, adding the product to the engine, further draining, drying out, and finally adding fresh coolant. All Rights Reserved. White smoke coming from the exhaust can be a sign of a blown head gasket. The BlueDevil gasket sealer is an easy-to-use sealer that saves you money in repair bills for your car. What is it that makes this product a very competitive sealant? You can easily spot these products as they often come in a tin and are referred to as sealant. Youll also know whether theyre right or not by how theyre applied; if you need to pour it into the oil filler cap, or apply it with a brush, its not the right one. Regardless of the route or product you decide on, remember to never ignore the symptoms of a blown head gasket. This will help you to truly appreciate why its essential to prevent and/or fix a blown one. These microfibers bond to the breach and mesh together. Diesel engines are typically low revving, high torque motors that are designed to last several hundred thousand miles.