Went for a 220 miles ride yesterday, most of it highway, most of it 80+, sometimes 110+.

Temp gauge never moved from normal the whole time. I just changed the antifreeze 3 weeks ago, yes Dexcool.

This morning found a puddle of antifreeze under the car when I backed it out. Noticed the smell of antifreeze in the garage after I had parked later last night.

Any thoughts? 73 K miles on the car. Water pump? Hose(s)?

Thanks.