How to deal with oil-like stains on car paint that cannot be washed off?
3 Answers
If the oil stains are detected early, they can be wiped off with a cloth. If the paint surface develops wrinkles, bubbles, or cracks, it is necessary to use automotive-specific cleaning sandpaper to remove the oil stains, followed by wax polishing to restore the gloss of the car surface.
As someone who frequently washes my car by hand, when encountering oil-like substances on the paint that won't come off, I first rinse the car body with mild car wash soap and water. If it still sticks, it might be resin or bird droppings. I try applying diluted dishwashing detergent (the kind used in kitchens) to the stain, let it sit for two minutes, then gently scrub with a soft cloth. Never use hard objects to scrape, as this can easily scratch the paint. If that still doesn't work, purchase a dedicated automotive clay bar and gently glide it back and forth to lift the contaminants. After stain treatment, rinse thoroughly with clean water and apply a layer of wax to protect the paint. Next time, avoid parking under trees or near oil contamination sources. If DIY methods fail, it's best to take it to a professional shop to prevent further damage.
As a seasoned driver, I've dealt with similar oil residue issues. First, identify the stain type – oil-like stains could be brake fluid or engine oil drips. I soak a soft cloth in warm water and apply it to the stain for ten minutes to soften it; then wipe with neutral car wash detergent. Avoid spraying alcohol-based solvents directly as they can corrode the paint. It's recommended to test clean a small area with white vinegar mixed with water. If the stain persists, use a shellac remover spray. Prevention is key – park away from industrial areas and regularly wash and wax your car. For stubborn stains, visit a professional detailing shop for polishing.