More often than not I find myself reaching for a can of WD-40 or a can of carb spray and a bristle brush to clean a car part. I usually have limited success or think the part could have come cleaner. I see junkyard parts come back from professional machine shops looking like they just came out of the factory casting brand new. Engine blocks, heads, carbs, they get so clean somehow. What chemicals can be used to make aluminum look like it was just cast? What cleans steel? What is safe for rubber? What isn't? Are there dips available so we don't have to scrub and scrub for hours with limited results? Any special techniques? What dissolves the most stubborn grime and carbon deposits? What is safe and what isn't?
Go to the auto parts store and it's like looking for a needle in a stack of needles! Everyone and their brother claims to have the BEST cleaning solution.
I searched, and considering the amount of work we do on our cars, this could be a very useful thread and save someone lots of time, money, and pain.