auto
automobile
blue
car
chemistry
closeup
diesel
economy
energy
equipment
expensive
filling
fossil
fuel
gallon
garage
gas
gasoline
generation
hand
holding
industry
motor
nature
objects
octane
oil
orange
person
petrol
pollution
power
pump
refill
refinery
reflection
refuel
refueling
row
self
service
station
tank
transport
transportation
travel
utility