Here's how I clean my engine bay. A spray bottle of Simple Green and a brush to use on stuck on grime should be enough to clean off your valve cover, airbox, and other engine components. After I let the Simple Green soak in, I spray off the engine bay with a mist of water. Be sure to cover electrical components or try not to spray on them directly.
That's all it takes to get these results:
That's all it takes to get these results:
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