[Jyden]

Driving with less oil in the engine wears out the oil quicker, so this willf orce you in to change oil more frequent.

If we assume, that your car takes 5 liters of engine oil, and theres a 1 liter difference of the full mark and min. mark on the dipstick, running all the time whit the oil at the min level, will reduce your oils life time with at least 20 percent maybee more.

The reason beeing, that the oil pump will circulate the same amount of oil in the engine when you drive a given distance, but now you only have 4 liters so the oil will circulates 20% more, and thus wear out much earlier.

I belive it a bad idear. Just dont over fill, but up to the max mark.