When you say "blindly" you are taking just as strong position in the other direction. I have reviewed him for 2 years and have seen plenty of criticism/and positivity...and I think He knows his stuff. But that is not the point her. That is why I said to consider it and research it, but just because other sites may bad mouth him, does not make him more/less credible.
I find his rankings of oils intriguing and I had issues with Royal Purple and cams as what led me to start looking into this a few years back. I am not selling anything, but merely stating it is "worth a read" at the 540ratguy blog and oil rankings.
Some of what the guy says is true, some of it is garbage. As I've said before, the main two issues that I have with his tests and results are:
1. He doesn't provide any uncertainties anywhere. Seriously, numbers without uncertainties are meaningless. If you don't believe me, I'll sell you my 100,000,000 hp 2002 Ram for $100,000 cash (note: +/- 99,999,775 hp). You never know, it could have 199,999,775 hp and be a good deal...
2. The other problem is this statement:
"The ppm (parts per million) quantities of zinc, phosphorus, moly and in some cases titanium, shown in the ranking list below, are taken directly from the Lab Reports that came back from the Professional Lab 'ALS Tribology' in Sparks, Nevada. Some oils have MORE ZINC than phosphorus, while other oils have MORE PHOSPHORUS than zinc. It just depends on the particular oil's formulation. Either way, the numbers below are correct and are NOT typos."
The ppm data are mass fractions. Because zinc is ONLY added to oils in the form of ZDDPs (while the phosphorus in oils can be from a variety of molecules) and because ZDDPs always have a 2:1 phosphorus atom to zinc atom ratio, the phosphorus to zinc ppm ratios should never be less than [(30.97*2)/65.39]=0.947. It's pretty basic chemistry. If you take a look at his measurements for "5W30 Joe Gibbs Driven LS30 Performance Motor Oil, synthetic," for example, you can see that the ratio is 1496/1610=0.929. What does this mean? That his data (or the data that he got from ALS Tribology) has some really high uncertainties.
