Do you spray this product up the condenser drain tube?

No, it will not fully reach the evaporator through the drain tube. This product is injected between the evaporator and blower fan. The blower fan helps push the foam into the evaporator for a thorough cleaning. If you need help on this install, you can send us picture of under your dash, passenger side and we will mark best install location for you.

Where is the best spot to drill Nissan rogue 2011

Hello, because of the unique location of the evaporator in this specific vehicle, please remove the kick panel on the driver's side (where you access the cabin air filter) and take a picture and e-mail it to us. We will mark the photo with the best install location/method.

Is there a way to apply this without drilling into your car?

Injecting the solution between the evaporator and blower fan is the most effective way of cleaning out the evaporator. Most vehicles require drilling however, there are some care models that give you direct access to the evaporator where you can just spray with the nozzle directly on the evaporator with no drilling required such as the Tesla Model 3. We can help with the install location of your vehicle if you email us picture of under your dash. You may also may want to look at our Protect Automotive Mold Treatment wich requires no drilling.

How do I know how much to use for my 2018 Tesla model 3?

It is recommended to use the entire can for the application. There is also a great YouTube video by living Tesla on applying this product on a model 3.