What should you use to protect engine paint when working in the compartment?

Using a fender cover is the best choice for protecting engine paint while working in the engine compartment due to its design and intended use. Fender covers are specifically made to fit over the fenders of the vehicle, providing a padded and non-abrasive surface that prevents scratches, dents, and paint damage from tools, parts, and other equipment that may be used during maintenance.

Additionally, fender covers often have features such as pockets for tools, and they are typically made from materials that resist oils and other automotive fluids, further ensuring that the surface remains protected. This is particularly important because the engine compartment can be a tight space where items may inadvertently come into contact with the vehicle's exterior surfaces. By using a fender cover, you are taking proactive steps to maintain the aesthetic and integrity of the vehicle's paint job, preventing costly damage and improving overall safety and efficiency while working on the engine.

Other options like old newspapers or plastic sheeting may not offer enough cushioning or may become easily dislodged, while oil rags are likely to be soiled and can actually contribute to stains or grease marks rather than protect the paint. Therefore, opting for a fender cover is the most effective and safest approach in this scenario.