mga dre, i've checked several threads here sa tsikot.com about white smoke. just recently kasi i've noticed white smoke from my tail pipe while driving. but it comes and goes. pansin ko ito usually when i drive sa expressway, pero wala pattern. pag high rev minsan wala, minsan meron. pag upclimb (pag exit) minsan meron, minsan wala. pag idle, wala. pag neutral high rev, minsan meron, minsan wala. top reasons based sa mga threads na nabasa ko is overhaul/valve/piston issue. just want more inputs kasi wala pa ako nakita thread about this white smoke intermittently coming out. nakaka-praning palagi ako nakatingin sa rearview while drive. i also noticed na nag start mag emit ng white smoke after magpalit ako ng valve cover gasket. hindi kaya may timaaan yung mga mekaniko? di ko rin sure. baka mabilis kamay nila. or baka kya multo itong white smoke na nakikita ko sa rear view mirror ko? hehehe.