On
most L1s this is true. But gas cannot be cut on the L2s.
Flitz will take down your plating eventually. The plating material on the castle piece & the nozzle is thin. I wouldn't use it anywhere on the lighter. I know it says that it's safe for plating, but they are mainly talking about car bumpers which are usually a) thickly-plated & b) plated with super-hard chrome.
I also avoid using water. Instead I use 91% iso alcohol & a small clean paper towel patch/q-tip to lightly wipe away any loose build-up, & whatever sticks stays. For full cleaning during use, I clean the whole lighter with a couple clean paper towel patches & 91% iso, & then I use a connessiurs cloth for final polish.
To get off the stuff around the nozzle that sticks, it really should be disassembled & handled properly from there in a low-impact manner - no abrasive polishes or chemical strippers or ultrasonic cleaners.
I maintain my own fleet, but...
...I don't work on other peoples units.
Not sure how you got that idea or why you presented it, but this thread is for Dupont lighter owners to post pics of & talk about their Dupont lighters.
Time for a new daily soon, I'm probably going to refresh & run this one:
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