If you switch cars, rent a car, or just cannot remember, this is a useful tip. The icon of a gas tank on your dashboard will have a triangle on the right or left. That shows you what side of the car you put the gas in. The picture shows my car takes gas on the left.
Very observant of you, Judy. I never knew. I've owned several cars. Never had one with a gas cap on the left.
Neat! I've never noticed this.