You can leave automotive masking tape on your car depends on the type of tape, the weather conditions, and how much tape you have applied. In general, you should remove masking tape within 6-8 hours after painting. However, it is essential to remove the tape as soon as the paint dries to avoid potential adhesive residue or damage to the car's paintwork. If you're unsure about the recommended duration for a particular tape, it's best to refer to the manufacturer's guidelines for optimal results. 

Here are some tips for removing masking tape from your car: 

Start by warming up the tape. You can do this by using a hair dryer or heat gun. This will make the adhesive easier to remove. 

Peel the tape back slowly. If you pull too hard, you could damage the paint job.

Use a solvent to remove any residue. A mild solvent, such as WD-40, will help to dissolve the adhesive residue. 

By following these tips, you can safely remove masking tape from your car without damaging the paint job. 

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