White powdery substance under car on garage floor

[Vancitycar]

Hi tesla family,

Just wanted to ask if anyone has this same issues as me. 3rd time I’ve seen this white powdery substance on my garage floor. It’s always on the same spot under my car around the rear axel. I’ve looked at all forum posting but no concrete answer was found.
This is not from salt as I’ve seen this the last two times under dry conditions. Not sure if my car is dripping any acid or chemicals onto the floor.

 

[brkaus]

Weird Model 3 white powder underneath car after it rains

white powder on the floor underneath of the model 3 parked

Not much info, but has come up a few times.

 

[Vancitycar]

Also wanted to add my last car was an Acura and this white circle never appeared on the ground i

 

[brkaus]

I will add - with the active cooling I see significantly more condensation under the car than any previous car I’ve owned. One previous car was also an Acura.

 

[linux-works]

delorean's ghost?

 

[BluestarE3]

delorean's ghost?

Did he use the stuff himself or just tried to sell it to raise capital?

 

[ZOMGVTEK]

It looks exactly like efflorescence caused by dihydrogen monoxide condensing on the evaporator and leaking out the drain.

 

[ewoodrick]

It's your car on drugs

 

[Vancitycar]

Weird Model 3 white powder underneath car after it rains

white powder on the floor underneath of the model 3 parked

It looks exactly like efflorescence caused by dihydrogen monoxide condensing on the evaporator and leaking out the drain.

Not much info, but has come up a few times.

It looks exactly like efflorescence caused by dihydrogen monoxide condensing on the evaporator and leaking out the drain.

Weird Model 3 white powder underneath car after it rains

white powder on the floor underneath of the model 3 parked

Not much info, but has come up a few times.

I will add - with the active cooling I see significantly more condensation under the car than any previous car I’ve owned. One previous car was also an Acura.

 

[Vancitycar]

Thanks for all the replies !

 

[bigroo42]

just a wild guess here but - a pool of water draining off the car? then it evaporates by morning and leaves behind whatever chemicals in crystalline format? other than that....super weird.

 

[Mrcarcrazy]

I’m a fan of the “likit test” to find out what strange looking substances are. It actually goes back centuries and is credited for many discoveries in human history. I think it was credited to a guy with the last name of Likit, but I could be wrong on that one.

 

[640k]

Hi tesla family,

Just wanted to ask if anyone has this same issues as me. 3rd time I’ve seen this white powdery substance on my garage floor. It’s always on the same spot under my car around the rear axel. I’ve looked at all forum posting but no concrete answer was found.
This is not from salt as I’ve seen this the last two times under dry conditions. Not sure if my car is dripping any acid or chemicals onto the floor.

all of these posts have been made during the winter. i know the locations are varied, but the chances of there being salt from roads, rains, etc., are increased. every car i've every owned have left dried up salt pools after driving in the winter.

 

[kbecks13]

I have noticed some white powdery marks under the front of my car recently, live in SoCal with zero salt on roads (and my car has never seen a salted road) so i don't think it's that.

I'm leaning towards it being the efflorescence that others have mentioned: What is Efflorescence? | How to Prevent it and Remove it | Nitterhouse Masonry

 

[BluestarE3]

Hmm... did Elon help finance the production of the Model 3 the same way John DeLoreon tried to do back in the day?