In reviewing the paperwork I got from the seller of my 2016 BMW 535d, which shows everything done by the local BMW dealer in June '23, I noticed a couple of interesting things. The dealer used a diesel oil conditioner and a diesel fuel system cleaner during the service, or at least the paperwork says they did. Nothing on the paperwork seems to have a valid part number for either additive. So my question is: Do I need to add ANYTHING to my oil when I change it, or to my fuel when I fill up? Or is this just something BMW does to pad their bottom line?
Side note: BMW charged the previous owner $146!!!! to add DEF (Adblue). What the ****!!! ECS sells 2.5 gallon jugs of DEF for $30, and Walmart has it for even less. Looking over the service invoice from the previous owner makes me angry. I will never, never, not ever pay BMW one penny to service my car, unless it needs something that only they can do (hopefully NEVER). Even then I'll try to find a way around it. The previous owner even pre-paid for 3 years of oil changes that would transfer to me, but I'm still not taking it to them. Bunch of crooks.
Side note: BMW charged the previous owner $146!!!! to add DEF (Adblue). What the ****!!! ECS sells 2.5 gallon jugs of DEF for $30, and Walmart has it for even less. Looking over the service invoice from the previous owner makes me angry. I will never, never, not ever pay BMW one penny to service my car, unless it needs something that only they can do (hopefully NEVER). Even then I'll try to find a way around it. The previous owner even pre-paid for 3 years of oil changes that would transfer to me, but I'm still not taking it to them. Bunch of crooks.