My 2c's worth:
(1) this is written by a writer that has very little technical knowledge (and a little bit of knowledge is a dangerous thing, so his credibility is to be questioned.
(2) while I agree with most of what he posted (10 points), 2 things that I strongly disagree are: (a) synthetic motor oil: there are engines/cars out there that has to run on synthetic motor oil, and (b) cabin air filters has to be inspected/replaced whenever possible (just replaced mine on my wifey's 2AZFE after covering over 40,000kms, and boy was it pretty much clogged with dust, feathers, dandilion seeds, and even have some small insects crawling out from the crease...
Quest-TD