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- 2022 2.5GT
The importance of "low ash" oil cannot be overstated. Many TDI owners had their oil changed at the "quick lube" places who never ever heard about the correct oil. Others thought it was just a way for dealers to get more money from owners. I bought mine when it went on sale from a few dealers and Amazon.com also sells it. My VW oil (Mobil 1 507.0) was also certified for use in diesels made by BMW and Mercedes. This should be one of the first things to get organized after you pick up your Mazda diesel.
100% agree.