Just wanna share some stuff i got from The Rag Company. Decided to try it after watching Junkman's Microfiber Video.

Had to use a US forwarder as they don't deliver here, came up to just under RM30 per towel. Not cheap, but thought i'd check what the fuss was all about, for fun. The towels are going through a first wash now, can't wait to try em this weekend.

Here they are from left to right : White waffle weaves, Glass towel, White plush towels, Blue Edgeless towels, .

White waffle weaves - drying, glass, house windows

Blue Edgeless towels - spray wax, removing wax

White plush towels - planned to use for waterless washes but not sure yet

Glass towel - This was free

Definitely! Just tried the White waffle weaves on windows. I've never used WWs before but i'm a believer now, at least on windows. Cleaned 2 cars using glass cleaner and just 1 towel, no streaks! But couldn't rinse off dirt with just water which i was silly to hope for, so had to use detergent. Here's a shot after 2 cars worth of windows :

Great advice, that makes more sense. I knew i was missing something. Thx man.
Degreaser is better at cleaning tires, wheel wells, and engine, vs APC. Some suggest weekly tire and wheel maintenance with APC. Whip out the degreaser / wheel brightener / Tar X / Iron X for tougher jobs?
Edit : Replace Tar X with any tar remover, replace Iron X with a decontamination cleaner like Sonax Full Effects Wheel Cleaner.

I'm not sure about other APCs and Degreasers, but here are what I picked up from Megs MSDS (as I'm used to using these two for quite a few years already):

Megs APC
Ingredients:
sodium C14- 16- olefin sulfonate
2- propoxyethanol
sodium metasilicate, anhydrou
water
pH: 13

Megs Super Degreaser
Ingredients:
oleylammonium chloride, ethoxylated
propylene glycol mono-n-propyl ether
potassium hydroxide
water
pH: 13.5

Megs Wheel Brightener
Ingredients:
ammonium bifluoride
ethoxylated alcohol
citric acid
quaternary ammonium compounds
propylene glycol
ammonium fluoride
water
pH: 4.5 - 5.5

I'm no chemist so I don't have the faintest idea of what the above means. But here's my experience & observations based on a few years of using all three of them:

1. Megs APC - works best in cleaning 'organic' soiling, eg. dirt, mud, etc. which are insoluble in water. It's just an alkaline detergent solutions that contains loads of surfactants to 'loosen' and 'suspend' the solids so that they could be flushed from the surface to be cleaned.

2. Megs SD - works best in cleaning petroleum based soiling and able to emulsify oil, grease, etc. better than APC, but doesn't work as good as APC for organic soiling.

3. Megs WB - works best in cleaning brake dust. Since it's acidic and contains liquid ammonia - which is a good solvent for in-organic compounds, eg. metal. Still able to clean soiling and *some* oil/grease, but not as good as APC or SD.

Now, the above three are DEDICATED products to tackle SPECIFIC tasks hence, as I understand it, they are put under the Megs Detailers (pro) line of products. During the earlier times, I used to use those off-the-shelves 'wheel cleaners' from Soft99, Eagle F1, etc. There were times where some of them clean off the dirt very well but just couldn't get all the greasy film off. Then there are times where most of the brake dust were removed but still left the wheel a little dirty with soiling. Then I understood that being an 'all-in-one' there would need to be a compromise, *maybe* because it's not chemically possible (or not commercially viable) to have all three properties in one product. Being OCD, I researched and decided to get some dedicated products, and finally went for Megs D-line (not to mention being a cheapskate since it's cheaper in the long run... ). One gallon of those three can last me years (especially WB since I used that the least often) since it's dilutable (eg. 1 gal APC diluted at 1:10 makes 11 gals = 41.6L (!)).

Over the years, I've also tried some other products but, for some reason (maybe because I'm used to them) I kept coming back to using Megs. So far, considering their performance, I found that they give the most value for money (locally).

So is the degreaser a stronger version of an apc? I don't know about Osren Degreaser FX (I do have some of it & also their Multi-Clean) since I don't use them often enough, but I do think that Megs APC and SD are two different product and have different chemical compositions. I've tried using a *very* diluted (around 1:20) SD to clean some lightly soiled fabric and it doesn't work as good as diluted APC (at the same dilution). And looking back at the chemical ingredients, I'm not sure if SD is actually SAFE to use it on interior, especially for plastics/rubber.

My advice would be, if you're going on the 'professional range of products' route, better use it for what it's intended for. I've done a few 'trials and experiments' before, some went well and some didn't. And those 'didn't' some times comes and a costly price.....

Not a very reliable tests but can get an rough idea....UNCONTROLLED pH value test...