Hi everyone,
just want to know how often do you change your air filter? also am i doing it right???
Im using a 2NZ-FE engine on city driving (severe condition)
my air filter is a 17801-0M020 full fabric material (FFM) i think this is the un-cleanable one not unlike the paper made
manual says for severe condition is 3T KM or 3 months! (wow that's gonna be so expensive)
as you know air is an important ingredient for combustion, but foreign particles is not because it will damage the the engine)
so its a good idea to keep your air filter clean
now how do i test if my filter is still usable?
on a dark room, i place an flashlight below and see if light will pass thru, if yes, then still usable, if no, its clogged and needs a replacement... also a drop in fuel efficiency is a sign of clogged air filter.
my last 3 replacement history (engine oil (5T KM or 6 mo) and air filter (3T KM or 3 mo) is done separately based on when they hit their respective due date applying severe condition guidelines)
may 29, 2013 - 29,017 km to sept 21, 2013 - 32,540 km = 3 months or 3,523 km
sept 21, 2013 - 32,540 km to mar 05, 2014 - 38,090 km = 6 months or 5,550 km
mar 05, 2014 - 38,090 km to aug 22, 2014 - 43,291 km = 5 months or 5,201 km
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