Hello, my car (Zafira A 1.6 Bj 2002) had high oil consumption, therefore all seals were renewed, also with one cylinder very little compression. The piston rings were therefore all renewed. It looks like the engine also does not lose any oil but simply consumes. I thought the oil consumption will settle after a certain time again into the normal range, but after more than 2000km the consumption is 1.5L/1000km (according to manual 0.6L/1000km normal) What could be the cause? The valve shaft seal has also been renewed. Does the oil flow back into the combustion chamber despite new seals? If so, can you use spez, oil loss stop additives to “thicken” new seals or are these additives only used to make hardened seals more elastic again? VG..