i'd just want to know when to do this.
tia
when our 1976 galant underwent general overhaul during the mid-90's one of the mchanics pulled down the gas tank, dis-assembled it, and then removed approximately half a pail of dirt that had settled there since the 70's. no wonder it always had a bad carburetor. unbelievable how dirty some gas stations are back then.
i won't recommend you do the same to your 90's vehicle. and gas is so much better these days than say, gas from the 80's.
kung simple drain lng pwede naman kahit sa gas station.
pero yung pull down at disassemble for internal scraping... dunno. dapat siguro sa professional techs. mahirap yun eh.