This is the first oil analysis for my 2023 Mazda CX-50 2.5S i.e. the naturally aspirated 2.5L engine. I was able to pull quite a bit of data using the OBD MX+ scan tool and I will discuss that below. The oil in the sample was from the complimentary oil change that came with the vehicle purchase, the receipt states Mazda 0W-20 GF-5 was used and the oil filter was 1WPE-14-302. That oil change was performed at 8684 miles The oil that went in is Pennzoil Platinum 0W-20 SP and the same filter went back on.
The oil was in use from May 19th to December 24th, over that time I covered 8043 miles and the total vehicle miles at time of change was 16727. This vehicle get used in mixed driving around Pittsburgh. I mostly work from home but when I do head into the office, it’s at minimum a 1hr drive each way. And over this interval, the car used no measurable amount of oil.
According to the computer, the engine has a total engine run time of 487.8 hour. OCI was 248.4 hours with total idle engine hours for the OCI being 31.8 hours. Average speed was 32.4mph, average MPG for the OCI was ~26mpg, with 305 gallons of fuel burned. The OLM was showing 2500 miles remaining on the oil change but I suspect it being closer to 2000 miles remaining since the next step down would be 1500 miles remaining. One more interesting data point I was able to pull off the ECM was Total Power Output of the engine, it stood of 6146.8kWh at the time of the change, so over the oil change, the engine produced 2908.1kWh of power. That equates to an average output of 15.7hp per hour of operation for engine.
Looking over the analysis, the amount of fuel in the oil was higher than I anticipated. But when I changed the oil, the oil coming out was really only lukewarm. I thought a 15 mile drive was gonna be enough to get the oil up to temp but I guess it wasn’t. So next sample I will take it on a longer drive before hand. As for the rest of the report, The viscosity is still in in grade even with a good amount of fuel in the oil. TBN, Oxidation, and Nitration all appear to be in check and at acceptable levels. Wear metals appear good since with this being only the second oil change and I expect them to continue to trend down. Overall this report looks okay, not great. I’m planning to run another analysis when the next oil change comes due, probably sometime this summer. Hopefully the fuel dilution will be improved.
The oil was in use from May 19th to December 24th, over that time I covered 8043 miles and the total vehicle miles at time of change was 16727. This vehicle get used in mixed driving around Pittsburgh. I mostly work from home but when I do head into the office, it’s at minimum a 1hr drive each way. And over this interval, the car used no measurable amount of oil.
According to the computer, the engine has a total engine run time of 487.8 hour. OCI was 248.4 hours with total idle engine hours for the OCI being 31.8 hours. Average speed was 32.4mph, average MPG for the OCI was ~26mpg, with 305 gallons of fuel burned. The OLM was showing 2500 miles remaining on the oil change but I suspect it being closer to 2000 miles remaining since the next step down would be 1500 miles remaining. One more interesting data point I was able to pull off the ECM was Total Power Output of the engine, it stood of 6146.8kWh at the time of the change, so over the oil change, the engine produced 2908.1kWh of power. That equates to an average output of 15.7hp per hour of operation for engine.
Looking over the analysis, the amount of fuel in the oil was higher than I anticipated. But when I changed the oil, the oil coming out was really only lukewarm. I thought a 15 mile drive was gonna be enough to get the oil up to temp but I guess it wasn’t. So next sample I will take it on a longer drive before hand. As for the rest of the report, The viscosity is still in in grade even with a good amount of fuel in the oil. TBN, Oxidation, and Nitration all appear to be in check and at acceptable levels. Wear metals appear good since with this being only the second oil change and I expect them to continue to trend down. Overall this report looks okay, not great. I’m planning to run another analysis when the next oil change comes due, probably sometime this summer. Hopefully the fuel dilution will be improved.
