That’s not his point.I honestly don't see the problem using 0w20 vs 0w16. The engine is not going to explode and the only difference will be 0.02 % reduction in fuel economy. I try to pick my battles and this is one I would not bother with. Enjoy the free service.
Gokhan knows the difference between 16 & 20.
The point is that he spent the money to buy a brand-new machine that is capable of remarkable efficiency, and he wanted the latest and greatest oil that’s designed and formulated for efficiency in the car.
Furthermore, it’s a matter of professionalism and trust for a dealership to know what fluids and parts your car specifies. You should be able to trust that they’ll know, and use, what the car is spec’d to have, by the designers.
We, as consumers, shouldn’t have to catch mistakes like this from a dealership we’re paying good money to do whats supposed to be the “best” quality work on our cars.
If he wanted mistakes like this made, he would have taken it to the local Jiffy Lube or something.
Will it likely make a big difference in economy? Probably not a huge difference.
It’s the principle.
He wanted the feeling of knowing, especially as a motor oil enthusiast, that he was getting the latest and greatest 0W-16 TGMO that was formulated to allow the absolute best economy from a machine that was designed to be one of the most efficient cars on the road today.