This afternoon I saw that car was leaking some fluid by mid car. Next to the catalytic converters. At first I thought it might be oil since I just did an oil change 2 days ago. But after taking a closer look it wasn't from the oil pan. I just want to make sure the leak is from the A/C system and not something else.

 

As long as its clear water... It's called condensation

~ Joe Z

 

The condensation is from the A/c system right? I usually see it towards the front of the vehicle in my other cars not the middle.

 

How about the oil filter? Could it be leaking? Did you touch the leak? Oily or watery?

 

It's the AC condensation...normal in the 3IS.

 

most lexus RWD cars drain the condensate near the steering rack or right behind the front wheels. if the leak is in the middle of the car (center between front and rear wheels), it's something else. mostly likely it's just AC condensation like everyone said.

 

Should be condensation, as others have said. You should be able to dip your finger into the puddle and see that it's water - colorless and not oily.

This is one reason why automobile fluids are all different colors. You can spot leaks, and it helps prevent people from putting the wrong fluid in the wrong place.