naalala ko lang, it's already a year since i had my last underwash and it's almost three years since i had my last engine wash (pero i regularly brush up the dust accumulating under my hood..)
may masamang epekto ba to? (not doing an underwash/engine wash regularly?)
underwash? very rare... usually ako na ang tumitira nyan sa bahay... basta high pressure water. dapat lang matanggal yung mga accumulated dirt / mud. kasi kapag nabasa, na reretain ng moisture & baka pwede pang panggalingan ng rust.
engine wash? since medyo na exposed ako sa kotse, hindi na. maraming pwedeng masira kapag mali. kaya engine detailing na lang.
underwash, minsan lng sobra dahil bihira lng lumabas nang umuulan ang tsikot.
engine wash, never kc mahirap na baka may mangyaring masama although pwede naman icover mga electricals. i just use a toothbrush for engine detailing.
got into this habit when i lived in snowy climates, where you needed to get rid of all the road salt and crap after every winter to preserve your car's condition.