As long as you wear a brown necktie, they'd be perfect! God bless Rodney Dangerfield.I have used every, cleaning, brightening, bleaching, and voo-doo juice known to man and the next day they are that yellow brown. 
Absolutely. Worked like nothing else. Now? Phhhhtttt....I used to use Westleys Bleche-Wite. I swore by the stuff.
I used to use Westleys Bleche-Wite. I swore by the stuff. There wasn't a whitewall or other tire I couldn't clean up. Squirt it on a dry tire, let it sit and then hose it off. If they were really dirty, hit it with a scrub brush when you apply it.
Then Westleys was bought up by Black Magic.
It's almost worthless now.
careful with that ketone boss, it will dry rubber rollers out. then you have to put rejuvenator on it. but that swells rubber. then your rollers are out of round. then you have to buy new rollers. so its a cycle.
(10yrs of printing experience in a past life)