28 Aug 2026
Engine Bay Cleaning: Myths vs Facts
No, water will not destroy your engine. Yes, a pressure washer in the wrong hands absolutely can.
Engine bay cleaning makes people nervous, and some of that caution is justified. Here is what is true and what is not.
Myth: water and engines never mix
Your engine bay gets soaked every time you drive through heavy rain. Modern connectors are sealed. Controlled water is not the problem - high-pressure water aimed at sensors, the alternator, the fuse box or the ECU is.
Fact: covering components matters
We cover the alternator, intake, fuse box and any exposed electronics before anything gets wet. That step is the difference between a clean bay and a no-start.
Myth: it is purely cosmetic
A clean bay makes problems visible. Fresh oil weep, a cracked hose, a perished belt, a coolant seep - all of these hide under caked grime and announce themselves on clean metal.
Fact: hot engines should not be cleaned
Cold degreaser on a hot block flash-dries, streaks and can warp plastic covers. We work on a warm-to-cool engine, never a hot one.
Myth: dressing makes it slippery and greasy
A proper water-based dressing, applied thin and wiped down, leaves a satin finish that repels dust. It is the cheap silicone sprays that end up sticky and dust-magnetic.
How long it takes
About an hour, including drying. Book it alongside a wash and the whole car gets sorted in one visit.