Petrol - “The first automotive combustion engines, so-called Otto engines, were developed in the last quarter of the 19th century in Germany.” Diesel - “In Europe, the United States, and Canada, taxes on diesel fuel are higher than on heating oil due to the fuel tax.” Pros: - Fast acceleration. - Easier to handle. Cons - More funds are needed for fuel. Pros: - Less funds are needed for fuel. - Longer durability Cons - The car is more expensive in maintenance. - It pollutes more. - Slow acceleration. Every day my family uses: 6 L - The price of each L is 47 MZN. - The total price is: 6×47= 282 MZN Every week my family uses: 6×7= 42 L - The total price is: 42×47=1,974 MZN Every 31 day month my family uses: 6×31=186 L - The total price is: 186×47= 8,742 MZN Every 365 day year my family uses: 6×365=2,190 L -The total price is: 2,190×47=102930 Every day my family uses: 4 L - The price of each L is: 47 - The total price is: 47×4= 180 MZN Every week my family uses: 4×7= 28 L - The total price is: 28×47=1,316 MZN Every 31 day month my family uses: 4×31=124 L - The total price is: 124×47= 5,828 MZN Every 365 day year my family uses: 4×365=1,460 L -The total price is: 1,460×47=68,620 200 180 160 140 120 Nissan Pathfinder 1997 100 Land Rover Discover 1998 80 60 40 20 0 Day Week Month 10000 9000 8000 7000 6000 Nissan Pathfinder 1997 5000 Land Rover Discover 1998 4000 3000 2000 1000 0 Day Week Month As my calculations have proven, I think it is better to use a diesel Car instead of a petrol one. Newer generation diesel engines are being made and improved , thus adding a new pro to the list. http://www.trucktrend.com/features/ne ws/2011/163_news110426_recall_older_ni ssan_pathfinders_infiniti_qx4/photo_01.ht ml http://www.buyacar.co.uk/land_rover_di scovery_diesel_sw/car_25_td5_s_5_seat_ 5dr_46119.jhtml http://en.wikipedia.org/wiki/Diesel_fuel# Taxation http://en.wikipedia.org/wiki/Gasoline