I realize these systems have been around a while and engineered to deactivate 4 cylinders. However, I've always thought that cant be good on the engine to kick off and on like that. Plus, wouldn't those 4 cylinders wear at a much higher rate than the other 4?? Makes sense in my head
If I hit the '-' button, it will show what gear but not override MDS. But does it show the gear change as the transmission shifts?
Also, to your comment on fuel mileage being worse with MDS on and better using all 8 cylinders. I'm sure there are alot of factors to prove/disprove that claim. I'm assuming the momentum of all 8 cylinders moving the weight of the vehicle would be more efficient than just 4 cylinders burning gas at higher rpm. But outside temp, wind speed direction, weight in the vehicle, (and for sarcastic purposes, the gravitational pull of the earth *haha*), the quality of fuel, tire pressure, age of engine, etc... many many factors could affect mileage that I'm not convinced which mode (MDS on or off) is more fuel efficient. Not trying to argue the idea. But I'm not convinced enough to disable MDS only for fuel consumption purposes
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