Price vs Value One of the most tried and true statements ever made is, you get what you paid for. In my past job in the tire industry this was always true for 90k mile tires vs 40k mile tires for high the price. The same can be applied to your fuel provider. Their are two types of oil providers that you can find out in the market, cash on delivery or COD and full service. COD companies take payment at the time of delivery of your oil and for the most part do not provide credit or payment terms. COD companies traditionally do not have a service department. So in the event that your heating system breaks down in the middle of the winter or your pipes freeze it may be difficult to find a company that will come out in the middle of the night. COD companies, because they have less staff and therefore less overhead have much lower prices for oil deliveries. Now a full service company, is a company that offers payment/credit terms, 24 emergency service, automatic d...