2004 Volvo XC70, 5,450 miles on oil/filter.
Performed engine flush
Replaced with Fram Ultra, Mobil 1 10w-30 HM + Lubegard Biotech
Note: The car had a PCV system change and oil trap replacement very shortly after this filter/oil was installed.
The Filter + oil installed by Volvo dealer at time of sale 16 months ago/5,450 miles ago. Believe the oil to be 5w30 Castrol Synthetic based on the window sticker. 122k on car now. The sump was about 2qts low, and small carbon shards in most of the pleats. The cartridge filter is in a molded cap w/the by-pass valve built in, pointing downwards. There was a 1/4 inch of sludgy mess in the bottom of the filter cap, also with carbon shards like this.
Before I removed the filter, I did a flush with 8ozs of Chemtool B-12 for 15 minutes at idle, x2. Then I added 1.5qts of diesel and did the same x2.
I believe the mess is from the fact the "oil trap" on the car was replaced a hundred miles or so after the oil change. It's a system I think unique to Volvo and they have a tendency to clog and create a real oil/sludge/carbon soup in a big box connected to the sump. I believe this was residue from that.
I installed a Fram Ultra filter and 6 qts of Mobil 1 10w-30, and 12 ozs of Lubegard Biotech. I will pull the filter after 500 miles to see how it looks; it's fairly easy to do that on this engine w/o much mess.
Performed engine flush
Replaced with Fram Ultra, Mobil 1 10w-30 HM + Lubegard Biotech
Note: The car had a PCV system change and oil trap replacement very shortly after this filter/oil was installed.
The Filter + oil installed by Volvo dealer at time of sale 16 months ago/5,450 miles ago. Believe the oil to be 5w30 Castrol Synthetic based on the window sticker. 122k on car now. The sump was about 2qts low, and small carbon shards in most of the pleats. The cartridge filter is in a molded cap w/the by-pass valve built in, pointing downwards. There was a 1/4 inch of sludgy mess in the bottom of the filter cap, also with carbon shards like this.
Before I removed the filter, I did a flush with 8ozs of Chemtool B-12 for 15 minutes at idle, x2. Then I added 1.5qts of diesel and did the same x2.
I believe the mess is from the fact the "oil trap" on the car was replaced a hundred miles or so after the oil change. It's a system I think unique to Volvo and they have a tendency to clog and create a real oil/sludge/carbon soup in a big box connected to the sump. I believe this was residue from that.
I installed a Fram Ultra filter and 6 qts of Mobil 1 10w-30, and 12 ozs of Lubegard Biotech. I will pull the filter after 500 miles to see how it looks; it's fairly easy to do that on this engine w/o much mess.