Afternoon all... Is there a right and wrong way to clean the engine bay.. I used to put degreasers on previous vehicles and hot wash but now with eight coils and electrics sitting on the rocker covers.. Yes I intend expose the engine so I can clean the build up around oil filler neck and rocker covers etc...No real oil leaks just attention to detail stuff! I would rather ask advise of experts first.. Thanks in advance. Levick.