Oil is simple, the marketing is complex. Most people get confused or dazed by the marketing on a bottle of motor oil. Phrases like "Ultimate Durability", "Superior Performance", or any of the million terms the marketing folk work up can confuse anyone, and make them believe one type of oil is sooo much better than the other non hyped up brand.Oil varies immensely in quality, cost and, finally, value. To a large extent, with oil you get what you pay for.
The labor cost at my BMW dealer for an oil change is $50. A local garage will charge $25 for the same labor.
You have a choice on the labor cost. I do not think that you have much choice on the oil quality, where you do not want to skimp. Thus I am not impressed or persuaded by talk of $35 oil changes, which has to be a lower quality oil.
Your first thought is correct in that removing the sulfur does reduce the lubricity of the diesel fuel. Refiners are suppose to use additives to restore the lubricity lost through the sulfur removal process; however, it is quite plausible that they only bring it up to minimum acceptable levels, rather than level similar to the high-sulfur diesel, e.g., ULSD may indeed have lower lubricity than the previous high-sulfur diesel fuel, and I believe this has been documented in some testing.Quick follow-up...II am no expert, but I have done some reading about the ultra-low sulfur diesel fuel and one of the biggest draw backs is that the sulfur that was removed was a valuable engine lubricant...my next thought is that that makes the oil I use that much more important.
I believe the fuel filter is suppose to be changed every third oil change. The filter is about $60 and, with the heater around it, probably more labor than for a typical fuel filter. If the flat rate time is 20 minutes, replacing the fuel filter alone is around $100, and i wouldn't be surprised if the flat rate is more than 20 minutes.Dealer changed oil, oil filter, cabin filter, air filter, fuel filter, added ad blue part of the MP...have 25K mile on my x5 diesel
Never before they changed all this stuff