Here's the first used oil analysis for my 4Runner purchased used back in November. The dealer paperwork that the owner had showed that it was and has been filled with Mobil 1 5W-30 and it had the Toyota oil filter. I pulled a sample through the dipstick tube so I'd know how much life was left before I dumped the oil and ended up running it about another 1000 miles before changing it last week. Results look pretty good with iron the usual Mobil 1 "high". The car is garaged so it rarely starts with a block temp below 40F but it does get a lot of cold starts followed by 1-4 miles of at least a dozen stop signs and traffic lights while serving duty for my wife and kids. I switched to the Pennzoil Platinum 5W-20 I have on hand that I used to use in my CR-V and upsized to the slightly longer that OEM Purolator PureOne oil filter. I'll probably pull another sample around the same mileage and see how this motor likes the thinner Pennzoil.
Nothing alerting me to any problems here as far as I can tell. Copper seems exceptionally low if the Universal Average is truly for identical engines. I expect slightly better results with warmer weather over this next run of oil though I will be doing a few hundred miles of sincere desert and mountain off-road through the summer along with occasional light towing and I don't know how that affects things on this engine.
Nothing alerting me to any problems here as far as I can tell. Copper seems exceptionally low if the Universal Average is truly for identical engines. I expect slightly better results with warmer weather over this next run of oil though I will be doing a few hundred miles of sincere desert and mountain off-road through the summer along with occasional light towing and I don't know how that affects things on this engine.