No touch tire cleaner to clean your car engine???

I don't know whats in it but I'd be very concerned it would have something even the slightest bit corrosive and it might get into wiring connections.

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then THROROUGHLY spray every square inch

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I did this on my F150 back when coil packs were a new thing. The water caused a misfire on one cylinder and cost me about $80 for a new Motorcraft coil pack. I no longer clean my engines with a hose or pressure washer

You can probably get by with a standard tire cleaner that will act as a light degreaser, agitate with a brush, then clean with a hose. Lots of auto detail videos on how to properly do this. You'll want to cover electronics/sensors to avoid messing them up.

Engine bay itself, remove the plastic and avoid getting the insulation wet.

Some videos will go as far as to clean with a foam cannon. Chemical Guys does a video or two on this exact process and they'll show you what you should be watching out for.

I asked a mechanic once about cleaning the engine. His reply, "have you seen the wires and electronics under the hood? Do you wash your computer?"

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I used Purple Power

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We always used that or Simple Green on the detail rack. Spray, wait 5 minutes, and lightly hose off with the engine running.

I know some used car lot owners who mist spray the engine bay with over-reduced automotive clearcoat. It makes all the hoses and plastic look great, and dries quickly.

Nope. Once every few months I go to a spray car wash and spray low pressure degreaser into the engine bay with the vehicle running.

I then kick it over to water, spend about five minutes spraying everything around the vehicle and not going near the hood. Usually heat will build up in the washer pumps and the water gets extremely hot.

Go back to the engine bay and spray everything down never getting closer than 3ft. Think of it as rinsing the soap off rather than pressure washing the engine.


My engine bays are as clean as new and I have never had a single eoectrical failure across any of the vehicles and likely 1.5-2 million miles.