The FSS engines do not have a dipstick, it has nothing to do with cost, except that MB wants you going back to the dealer for service.

MB sells a stick with no markings on it that fits all of the different FSS engines. If you want to use it full time in your engine, you'd need to cut it to length and add marking to the oil level you want.

There's a reason for the 10k interval: it's all that's needed. Most people change oil WAY too much. It's like they're stuck in the fifties or listen to too much advertising from the people who make money changing oil for you.

Mobil 1 has gone over 100,000 road miles with no wear on the engine. This from a PHD chemist in their research deartment who worked on the development of Mobil 1. The first car they tried it in was their CEO's limo. He didn't like to fly & was driven cross country constantly. It took about 18 months for him to do the 100,000 miles. Don't know how many time I've heard that story from the guy who did it. It's one of his favorites. He walks the walk, too. Has the Mobil 1 in his cars changed every other year. One fairly new Accord and one 15 YO BMW.

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Norm in NJ
Next oil change at 230,000miles