Unknown Jiffy Lube filter.
3000 miles on RedLine HP 5W30 following JL's engine clean & flush service performed by previous owner prior to sale.
Loosened soot residue was dry and flakey. Had it occurred to me, I would have checked on and likely changed the filter after 1000 miles and every 1000 after until the oil reached 5000 miles.
Replaced with Fram XG8481 and Valvoline Restore and Protect 5W30.
More details including PCV chambers and under valve covers at https://bobistheoilguy.com/forums/threads/new-to-me-ml320.396893/
3000 miles on RedLine HP 5W30 following JL's engine clean & flush service performed by previous owner prior to sale.
Loosened soot residue was dry and flakey. Had it occurred to me, I would have checked on and likely changed the filter after 1000 miles and every 1000 after until the oil reached 5000 miles.
Replaced with Fram XG8481 and Valvoline Restore and Protect 5W30.
More details including PCV chambers and under valve covers at https://bobistheoilguy.com/forums/threads/new-to-me-ml320.396893/