naku wag po i warm up kung engine wash... as much as possible keep it cold kasi pagbiglang masalpakan ng cold water yung hot engine, baka may magcrack (worst case) or may madamay na component ng engine.

i use several products for engine wash, bug and tar remover for painted areas, joy with water for plastic areas, and yung pang garden na spray (yung pump to create pressure thingy :bwahaha, degreaser minsan kung garapal na yung putik.

i remove the battery and the cold intake para hindi mahirap maneuver sa ilalim. then cover the alternator, intake, and distributor.

una, i clean the painted areas with plain water then do bug and tar remover kung may stains. for the plastic areas, yung joy with water and gamitan ng old toothbrush para malinis ng mabuti. yung metal parts naman, kung garapal na yung dumi... degreaser na pero kung hindi pa naman, ok lang na joy pa rin gamitin.

sobrang nakakapagod lang and ubos oras pero after,,, sulit naman pagod

hth