Still trying to use a $30 spectrographic analysis to show comparative wear? Even after the links and post by edhackett in this thread? And the many other posts about what a simple UOA shows and what it most certainly does not show?" It is still a truth that the only real benefit to thinner oils is slightly improved fuel economy."
...And maybe less wear with thinner oils in an appropriate application:
Older post:
Compared Enzo Ferrari UOA from years ago: This is my neighbor’s 2003 Ferrari Enzo with a total of 8,800 miles (?fully broken-in) on the left column and my 2003 Enzo with a total of 4,400 miles on the right column (middle 2 columns, earlier UOA of my car). Both cars had about 1,400 miles on the oil. His obviously had more break-in time. He had the oil changed by the Ferrari dealer using the required 10W60 Shell Helix Ultra Racing oil. I ran 0W30 Castrol GC in the second column, the original formula of 0W30 Renewable Lubricants Inc. in the 3rd column and the “new and improved “ RLI “Dr. Haas” Enzo formula in the last column.
Tested my Enzo oils by Terry Dyson. His testing counts larger particles as well as all the smaller ones so other labs may give false lower values. At no time has the oil temperature in this engine gotten above 180 F. What is particularly interesting is that the original RLI formulation dropped to a 20 grade, the newer formulation did not.
OILS: ….Shell……. GC…... RLI….... RLI - “Dr. Haas Enzo Formula”
Iron___________ 32...11...7...3 (Fe in RLI VOA =2)
Chromium ____
Nickel __________2...1....0...0
Aluminum _____11...3....2...0
lead ___________ 16...0....3...1
Copper ________25...8....4...3
Tin ___________
Silver ________
Titanium _____
Silicon _________ 7...3....4...2
Boron _________ 1...3...16..17
Sodium _______ 8...3....10...8
Potassium ____
Molybdenum _
Phosphorus ___1026...935…1032…698
Zinc __________ 1135...1228…1055...988
Calcium ______ 1454…167...2108…1898
Barium ______
Magnesium __1219...526…53...19
Antimony ____
Vanadium ____
Fuel %Vol ____
Flash_______not done..335..320..300
Abs Oxid _____ 34...10..127...95
Abs Nitr ______ 11....8....8....7
Wtr %vol ____
Vis CS 100C __ 15.8....11.8….8.6….9.8
Vic CS 40C___not done…66….44….48
SAE Grade _____40....30....20....30
Gly test ______NEG…..0.37 “not antifreeze”…...0…..0
TBN _________not done...7.9....5.9...6.4
TAN _________not done...1.7....1.4...1.3
Visc Index___not done…154...177...192
Soot_________not done...0....0.01....0
Note the resistance to viscosity drop in the newer 0W30 formulation despite more fuel dilution.
Ali
And what about his testing that allows him to count larger particles as well as smaller ones? Please elaborate.