Oil service interval was 5 months. During this time the car was driven 75% highway (including a few long distance trips), 25% rural/city. I typically drive the car conservatively, but I sometimes like to accelerate fast on open highway on-ramps and get the RPMs close to red line. Oil was Mobil 1 0w20 SM and oil filter was a Purolator PureOne. My reason for sampling is from the thread below where I was concerned with visual cam lobe wear (although the report doesn't find anything out of sorts). Cam Lobe Wear The oil was changed at the time of UOA sampling. UOA was done after idling the car although it was still warm from a prior highway drive. The current fill is Mobil 1 0w20 SN and a Purolator PureOne filter. I will follow the 7,500 mile OCI as dictated by Mazda. Most importantly, I love driving this car! Let me know what you folks think. Thanks.
Make/Model: Mazda6 2.5L 4-cyl Oil Type & Grade: Mobil 1 0w/20 Fuel Type: Gasoline (Unleaded) Mi/HR on Oil: 6,638 Mi/HR on Unit: 9,885 Sample Date: 09/24/11 Make up Oil Added: 0.4 quarts Aluminum 4 Chromium 0 Iron 13 Copper 18 Lead 1 Tin 2 Molybdenum 199 Nickel 1 Manganese 2 Silver 0 Titanium 0 Potassium 0 Boron 76 Silicon 12 Sodium 6 Calcium 1295 Magnesium 787 Phosphorus 642 Zinc 818 Barium 2 SUS Viscosity @ 210F: 50.4 cSt Viscosity @ 100C: 7.39 Flashpoint in F: 400 Fuel% <0.5 Antifreeze% 0.0 Water% 0.0 Insolubles % 0.2