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There is a lot of carbon (about 85%) in diesel fuel. There is also a lot of carbon in petrol. There is a little sulphur (about 1%) in diesel fuel and there is no sulphur in petrol. There is a great deal of petrol (about 95%) and a little oil (about 5%) in the fuel mixture for two-stroke engines. There is no oil in the fuel for four-stroke engines. There is a great deal of air (90%) and not much fuel (10%) in the fuel and air mixture.
Petrol has a low percentage of carbon.
There is too much sulphur in petrol.
A lot of motor vehicles have petrol engines.
There is a lot of carbon in petrol.