How to you choose whether or not to buy a petrol car or a diesel car ? Now that the petrol prices have increased, many of us tend to go for a diesel cars. Diesel cars are costly by atleast a lakh when compared to their pertol varients. We need to take a look at the following factors and then decide. Whats your average usage per year What are the maintenance costs per kilometer How long are you planning to use a car Diesel cars...