Hi, I have a question about engine cleaning.
A beginner's book called "Auto Upkeep" says to clean the engine like this:
"Open the hood. Wet a shop rag with a multipurpose cleaner and wipe grime, dirt, and dust from the engine compartment. Close the hood."
What kind of multipurpose cleaner would work--Ammonia-based spray?
Also, do I have to worry about accidentally cleaning off intentionally lubricated surfaces inside the engine compartment?