Um, no. Simply parking your car on the grass would not cause your tires to lose air. Unless by grass you mean green painted nails. If you do mean that, then yes.
On all your tires or just one? If just one you probably have a nail or a screw stuck in your tire many tires leak very slowly even with a puncture like that.
not unless you ran over a nail that was in the grass
Ah, no A nail, screw, dented rim or loose valve stem, will cause a slow leak
Hope it helps
Lr
A small hole in the tire.
The car was parked on the grass for about 8 hours.
