what is a good vinyl cleaner?

my front seat is getting a little dirty and i wanted to get some input on some really good vinyl cleaners/protectants, etc. thanks for the help.

Brandon

I want my vinyl to have a matte finish so i don't use protectant. My upholstery guy says it just cooks it in the sun. Don't know about that, I just want the dull finish. He got me into Malco brand "Leather and plastic cleaner" it cleans and won't shine my material. When my material gets shiny from usage. i hit it lightly with mineral sprits (also removes the spray glue with out shining the vinyl) and dulls it right out. then it clean it again with the Malco. I AM NOT AN UPHOLSTERY GUY BUT THE MINERIAL SPIRTS WORKS FOR ME - TRY A SPOT FIRST - DON'T BLAME ME!