Oils, detergents and aerosols on a plane
At US checkpoints, an oil bottle, detergent powder and pressurized spray have different baggage rules. Read the product label before checking the container size. A 3.4 oz / 100 mL bottle is still unsuitable for passenger baggage if its contents are prohibited hazardous material.
Nonflammable oil and ordinary detergent
FAA allows nonflammable, non-aerosol oil, including food oil and standard motor oil, in carry-on and checked baggage. A carry-on bottle must also meet TSA's 3.4 oz / 100 mL liquids limit. TSA lists ordinary liquid detergent under the same cabin container limit, while detergent powder or pellets can travel in either bag. Check a product with a hazard label separately; bleach is not covered by the ordinary detergent entry. FAA: nonflammable oils.
Insecticide and spray starch
TSA prohibits aerosol insecticide in carry-on. Its checked-bag listing applies only when the can is not labeled hazardous material. A skin-applied repellent has a different purpose and rule from a spray used in the air or on insects. TSA lists spray starch as prohibited in both bags; FAA also prohibits flammable non-toiletry aerosols. Read the propellant and hazard label rather than treating every spray as a toiletry. TSA: complete item list; FAA: aerosols.