Originally Posted By: nap
The idea is that they are warranting only their own products to be compatible with their paint and trim elements. If someone has the bright idea to wash the car with CLR then Toyota will have the right to decline to repaint the car under warranty. And neither will CLR maker help, as the instructions for the product do not suggest using it for car washing.
Now if you use some car product like Mothers or Meguiars and they create issues, you’ll have to take it with them, not with Toyota. As it’s them that claim the product to be “compatible with all paints”.
For parts it’s the same. The warranty for the part is the responsibility of their respective manufacturer. If a non-Toyota part created a chain of failures, you’ll have to take it with that part’s manufacturer for the whole mess.
But that's not true. If I have rust issues Toyota won't deny my rust-through warranty because I used Turtle Wax to wash my car, and I don't have to go to Turtle Wax for the warranty. Again, using a product that is wholly inappropriate is one thing but not using the recommended one is isn't going to affect my warranty. People keep deviating this into the concept of using wood glue as oil but that's not the issue here. The issue is using "oil" that isn't the recommended one. The bottom line is that recommendations are just that - recommendations.
If the Turtle Wax was defective and ruined my paint, yes I'd go to them. But that's not what I meant. Some automakers recommend a certain brand of fuel, will my warranty be denied because I go to Shell instead of the recommended BP (assuming I don't get defective fuel)?
