Considering Trade from Gasser to Diesel

I traded from a gasser to a diesel last summer and I have actually saved money. I spent a little more and went with synthetic oil which is supposed to allow for longer duration between oil changes. That cost overall is about a wash for my gasser. However the diesel is getting about double the mileage of my gasser and is my daily driver. So I am actually saving money on fuel despite the price difference which here is about 50 cents. The overall maintenance is more but the intervals are generally longer so it really comes out very close in cost. Repairs if things actually fail or break is usually the bank breaker for most people. Example: One week after I bought my Dodge an injector failed. I bought with no warranty so I had to argue with the dealership and eventually I paid labor. The whole bill was $750.