If I recall correctly, the G3 was the first Prius to switch from xW-30 to xW-20 oil. Here is an oil analysis I did comparing Mobil 1 versus Toyota's own oil (in a Honda engine). The Toyota oil performed just as well as the Mobil synthetic (except the T oil had high acid content): Mobil 1 0w-20 on the left Toyota 0W-20 on the right 1.0 liter 3-cylinder, 2006 Insight hybrid 4000 mile intervals, 134k on engine BLACKSTONE: We like steady wear trends, and they don't get much steadier than this! We always say that it takes three samples to build a solid trend line, but the first two reports show nearly identical levels of wear after similar oil runs, so you're off to a really good start for this Insight. No moisture, dirt, or fuel was detected, so the oil was once again free of harmful contaminants, and there were no signs of air or oil filtration problems (low silicon and insolubles) M1 ------- TOY 2 ALUMINUM 3 0 CHROMIUM 0 4 IRON 4 2 COPPER 2 0 LEAD 0 0 TIN 0 77 MOLYBDENUM 109 0 NICKEL 1 1 MANGANESE 1 0 SILVER 0 0 TITANIUM 0 0 POTASSIUM 1 94 BORON 18 12 SILICON 5 4 SODIUM 5 1414 CALCIUM 2305 747 MAGNESIUM 125 693 PHOSPHORUS 790 788 ZINC 906 0 BARIUM 0 . 50.5 SUSvisc210F 50.4 7.43 CSTvisc100C 7.40 415 Flashpoint 425 4.5 TBN 4.1 0.8 TAN 2.9 .
Troy, I'm not sure what you did. Did you run M1 in the Honda and then drain/fill with Toyota? Or do you have also own a Prius and are comparing two cars/engines?
Same Honda car, but two different oils in two changes. Here are some more oil analyses for the Toyota 0w-20 and Mobil 0w-20: M1 0w-20, 5200 mi, 2012 Prius C - Bob Is The Oil Guy Toyota 0w-20, 10,292 miles, 2011 Toyota Prius - Bob Is The Oil Guy
Troy, the 2008 gen2 also uses 0w20 oil in the UK, but possibly different in the US or other countries. The only clue to your possible location is that you use Blackstones for your oil analysis. John (Britprius)
Nice results Troy. Those wear metals are about as low as you could possibly get. Looking at some of those numbers you could almost think you were looking at a virgin oil sample.
