CRC GDI intake valve cleaner

[allendaguplo]

do we need to use the CRC GDI intake valve cleaner in our Hyundai Palisade?

 

[Pali_Bob]

I think it's a waste of money to do that.

 

[allendaguplo]

is it advisable to put oil catch can in my palisade? will it affect the warranty? thanks so much.