I tried using Formula 1 Wash and Wax with carnauba once. It started corroding through the chrome of my center hub caps of my strada. I never used it since. Nagpalit na ako ng new hub caps and switched to Polyglaze, Simoniz or Turtlewax car shampoos which in my experience are friendly to chromed hub caps. :D
i'm currently using Meguiar's Rich Suds Car Wash. Php 545.00 is too much of a price for a 32 oz. bottle. you're better off with a Polyglaze Car Wash w/c is a good product matched with a good price.
I tried these Car Shampoos in sachets na available
sa Ace Hardware sa Megamall.
Yung A-toy (P10.00) at yung Mess-Out (P7.00).
Masyadong mabango. Masyadong madulas.
Masyadong mabula. Nagsuspetsa tuloy ako na
dishwashing liquid lamang iyon na re-packed
as car shampoo. I never bought those things again.
Polyglaze Auto Wash...mabango, wax safe at may anti-rust agents pa raw...pinakyaw ko yung sa Handyman(may 33% extra na 10% price off pa)...check mo baka nag-restock na ulit sila...