for me its ok... i use high pressure cleaner to wash the under bonet n the whole engine... but i din use any sabun lar.... the pressure enough liao
for ur info.. my car is wira 1.5 injection...
after washing.. use the dust blower (look like siput turbine) to blow dry..
or use the air gun also can..
if dun have dat.. leave ur bonet open under the hot sun...
so far i dun experience any prob wit my "engine washing"
nice n clean.. my engine always look new... :lol: