I've found on my 2012 6 cylinder T6 that changing the oil more often slowed it down. I went from 7500 to 5k and only use 2 qts between changes when that last 2500 miles would use almost 3. Perhaps lucas oil stabilizer would help slow it down as well.
I did the math. I buy 5 quart jugs of Castrol off Amazon for $20/each. At current rate of consumption, driving 50k miles would burn $100 worth of oil. I'd need to drive another 300k to break even with the cost of making my engine not burn oil, and with 216k already, why?
As for the cat, I wouldn't panic. How many universal cats can you buy for the cost of a new engine? Probably 4 or 5. Mine hasn't gone out, even with all the miles.
If it REALLY bothers you, maybe find an engine out of a totaled 2017 - that year got updated pistons. Pay an indy to drop it in. You'll probably come out for less than you would paying Volvo to fix the engine you have. Not sure how many hours an engine R&R is, but it's certainly less than 19 hours.
I did the math. I buy 5 quart jugs of Castrol off Amazon for $20/each. At current rate of consumption, driving 50k miles would burn $100 worth of oil. I'd need to drive another 300k to break even with the cost of making my engine not burn oil, and with 216k already, why?
As for the cat, I wouldn't panic. How many universal cats can you buy for the cost of a new engine? Probably 4 or 5. Mine hasn't gone out, even with all the miles.
If it REALLY bothers you, maybe find an engine out of a totaled 2017 - that year got updated pistons. Pay an indy to drop it in. You'll probably come out for less than you would paying Volvo to fix the engine you have. Not sure how many hours an engine R&R is, but it's certainly less than 19 hours.