Acquired a fairly well maintained 2004 Volvo S80 turbo from a friend. It was reasonably well cared for in terms of oil changes during friend’s ownership (oil changes ranged from 3K-8K miles intervals) from about 50K miles to 219K miles. I think he used Mobil1 early in ownership, but then started “letting it go” with syn-blends and whatever the garages that he went to used. So at 219K i changed the oil with a cheapie API brand cartridge filter and 5.5 qts of Delo 400LE CJ-4/SM Synthetic 5W-40. Car now sits at 223K miles, so i decided to just do a filter change, add Rislone HM treatment, and put in a new cheapie API filter (got these from RockAuto for about $1.40 each). The idea here was to see what the Rislone HM will do in the next 2000 miles, vs. what just the motor oil was able to clean up in 4000 miles just completed. I was quite surprised at the amount of crud collected in the filter pleats at 4K miles (keep in mind, the filter pics are before adding the Rislone). I’ll be adding another 2K miles now that the Rislone is in there, and will be inspecting the new filter to see what the Rislone “pulls” out of the engine. I‘m guessing it won’t be pretty.
Is this amount of crud normal for 4K miles?
I don’t usually deconstruct my filters to look at the pleats (and crud) up close, but i could see the build up of crud settling on the bottom of the filter before even pulling it apart. Some of the ”cleaner looking” pleats probably look that way because i used a pick to pull out the crud before cutting open the filter. Anyone else care to post their filter crud (Along with any other info about the car, oil used, etc)?
Is this amount of crud normal for 4K miles?