auto
automobile
background
black
conservation
consumption
design
diesel
energy
environment
equipment
filling
fossil
fuel
gas
gasoline
global
green
icon
illustration
industrial
industry
isolated
location
nature
nozzle
object
oil
outline
petrol
petroleum
pictogram
pipe
pollution
power
pump
refuel
refueling
road
service
sign
silhouette
station
symbol
tank
transportation
white