[Fooj]

Curious how much of that reduction in consumption is the flush, vs the viscoplus. Cuz I’ve done 4 flushes on 2500 mi interval and still have the same 1Q/1k mi consumption. What mileage are you doing this at?

 

[Fooj]

Can get 4 cans of BG EPR 109 on Amazon for under $50. 4 cans covers 4 flushes for our oil capacity. I may just give it a try since liquimoly’s done nothing noticeable over the last 3-4 changes. Only concern is running all these flushes, hope a passage doesn’t get blocked by dislodged junk and starve bearings… can’t keep burning a quart/1k though.

 

[Fooj]

May finally have made headway with additives…

last 3 flushes with liqui moly did nothing, tried BG EPR + ~120 miles holding 4k rpm mostly highway split 60 miles before and 60 after the flush/change. 600 miles later, oil's only down 2 croshatches/~2/5 quart in 600 miles, vs the 1/5 quart every ~200 miles im used to. Bit early to celebrate, but it's been quite consistent up until now. Other thing is, if anything I should be seeing more consumption running 4k rpm even if only for 60 miles after. Not using any viscosity modifiers, castrol edge 5w-30 euro.

 

[Fooj]

I think the type of oil is more crucial than the change interval. I don't think we would have seen as many cases, at least with the 2012 5 cylinder, if Volvo had used and specified a full synthetic from the start. Case in point, my engine started burning oil pretty bad by 40,000 miles. Volvo's change interval for this MY was 7500 miles. Still being a bit old school I was changing the oil myself in-between, so every 3750 using the proper Volvo speced oil at the time. The scoring was bad they actually replaced the engine thankfully all under warranty. But I'm really glad this has worked for you.

Wait, that second part just registered for me. Your 2012 5 cyl had scoring? I thought that was only really a problem on the 4 cyls with the bad rings and pistons, so the 5 cyls were “safe”?

 

[Fooj]

I think I will try BG EPR next time!

Seems to be the deciding factor at least for me… or maybe a cumulative effect although it didn’t seem that way. Holding 4k maybe helped get rid of some of the loosened junk… can’t say. It’s holding up though -


Engine replaced ~60k mi, unknown cause of failure
@72,187 mi 8/15/20 oil changed (shop)
@75,881 mi 9/24/20 oil changed (shop)
@81,580 mi 1/20/21 oil changed (shop)
@90,050 mi 11/2/21 oil changed
@98,767 mi 01/28/22 oil changed
@102,363 mi 04/01/22 oil changed
@103,832 mi oil at bottom of last crosshatch from top, added 1 qt.
@104,872 mi 05/23/22 oil changed
@108,107 mi 07/29/22 oil changed + flushed (Liquimoly).
@109,639 mi cold dipstick below minimum, added 1/2 qt. Added further 1/2 qt. due to low read. New read third crosshatch at temp after 15m
@110,049 mi 09/2/22 oil changed + flushed (Liquimoly)
@112,685 mi 10/28/22 oil changed + flushed (Liquimoly)
@113,228 mi 11/10/22 oil level dropped 3 crosshatches, ⅗ qt consumed in 543 mi, added ⅗ qt
@113,340 mi 11/15/22 note radiator leaking slowly, coolant reservoir topped off.
@113,352 mi 11/16/22 oil dropped 1 crosshatch, ⅕ qt consumed in 122 mi, added ¼ qt.
@114,020 mi 11/25/22 oil dropped 4 crosshatches, ⅘ qt consumed in 668 mi, added ⅘ qt.
@114,613 mi 12/4/22 oil dropped 3 crosshatches ⅗ qt. consumed in 593 mi, added ⅗ qt.
@114,925 mi 12/11/22 oil dropped 2 crosshatches ⅖ qt. consumed in 312 mi, added ⅖ qt.
@115,480 mi 1/14/23 oil dropped 3 crosshatches ⅗ qt consumed in 555 mi, added ⅗ qt.
@116,307 mi 2/2/23 oil dropped 4 crosshatches, ⅘ qt consumed in 827 mi, added ⅘ qt.
@116,630 mi 2/10/23 oil changed + flushed (bg109)
@117,606 mi 3/10/23 oil dropped 3 crosshatches, ⅗ qt consumed in 976 mi. (Cold read)

all others except for last and the below min reads were done level, at temp, after 15 min. I would’ve had the last one done regularly but it’s 2 am and I got a flight today, so it’ll have to wait. Will get it to near min before adding to see what it comes out to.

I would’ve preferred only adding in that way but I’m not the only driver, so I have to keep it at max constantly since she doesn’t check or add it.. is when it went below min. Hopefully I can reduce it further, will have to see. Was your reduction pretty gradual or sudden?

 

[Fooj]

Was it a new engine at 60k?

Used, /w unknown to me miles since records weren’t kept and the shop it was done at closed since.