I just finished my fourth oil analysis (once a year since I bought vehicle) on my 2008 Acura MDX. Oil has 6800 miles. Honda Oil Life Monitor at 10% or 15% oil life remaining. Vehicle has 63,600 miles total. Using Acura OEM Air Filter, changed per maintenance minder. Using Purolator Pure-One Filters. Typically use Pennzoil Platinum 5W20 (just tried Pennzoil Ultra since it was on sale). Powertrain Warranty expires at 70,000 miles. Anything to be concerned about? I think it looks like everything is quite good but wanted to post. Silicon - 12.2 Potassium - 0 Sodium - 11.1 Boron - 10.0 Barium - 0.0 Calcium - 2419.0 Magnesium - 17.5 Molybdenum - 52.9 Phosphorous - 604.4 Zinc - 711.2 Iron - 6.1 Nickel - 0.4 Chromium - 0.3 Tin - 0.6 Copper - 0.9 Lead - 0.6 Silver - 0.1 Aluminum - 4.6 Water - Neg Glycol - Neg Fuel - Neg TBN 4.70 For comparison, here is a link to my previous oil analysis: http://www.bobistheoilguy.com/forums/ubb...209#Post1778209 Thanks!