What kind of glue is used to fix a diesel fuel tank leak?
2 Answers
For a diesel fuel tank leak, AB glue can be used to seal it. However, it is necessary to first clean the diesel fuel tank thoroughly before applying the AB glue. If the tank leak is large, it is recommended to replace the tank as a significant leak may not hold with glue. Diesel itself has cleaning and corrosive properties, and the diesel pipes used in vehicles are oil-resistant, unlike ordinary gasoline pipes, so it is advised not to use glue. Other solutions for a diesel fuel tank leak include: replacing the tank: chosen by over 95% of people, although costly, it fundamentally solves the problem with minimal risk; welding the tank: a choice for a very few, with high risk, long repair cycles (even longer for gasoline tanks due to longer volatilization time), and low cost.
I've fixed countless cars in my life, and a diesel fuel tank leak is no small matter. Diesel can corrode things, and ordinary glue simply won't work—it might even dissolve and make the leak worse. My experience is to use a specialized oil-resistant epoxy adhesive, like brands such as JB Weld. When using it, first thoroughly clean the leaking area, remove oil stains with a carburetor cleaner, then apply the adhesive and let it cure. Remember, safety first—keep the work area away from fire sources, as diesel is highly flammable. If the leak is severe, it's best not to try fixing it yourself; take it to a professional repair shop immediately, or else a larger tank crack will cost much more to fix. For regular maintenance, always check the fuel tank for rust and address issues promptly to prevent problems.
