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Telling a man what wax to use on his car is like telling him which steak sauce to put on his steak.....some of us are pretty hardheaded.
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I've been told a number of times that I may be a little difficult to sway.
All of these products sound good, and everyone is sure to defend their choices. It's just human nature.
I bought a new car in 1970. The first coat of wax it received was the old two-step Meguiar's Competition that came in black plastic tubs. The cleaner was pink and the sealer was light green. I was happy with the results and have stuck with Meguiar's since that day. This car's paint has NEVER had anything but Meguiar's on it. I might try some of the other stuff discussed here, but it will be on one of the other vehicles. Just a loyalty thing I guess.
BTW, I do agree; the Professional Grade (tan bottle) products are the way to go.