S70 ran out of oil :(

[MoVolvos]

Update. Drained the oil and did an oil change. My magnetic oil pan plug was covered in small metal shavings. The Mann oil filter is really heavy so I know it also caught a lot of debris. The drained oil left golden color, non-magnetic particles on my draining felt. Car still runs but sounds like a bag of rocks. I’m sure there’s engine damage. Any ideas on what the particles are? Cylinder walls? Something else? The best this car can be is a short distance point A to point B vehicle without an engine tear down and rebuild.

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If you put in the 5W30 it will destroy that motor quickly so do not drive with it!

If you want PM me your address I will pay for and send you a gallon of Swepco 20W50 from Amazon. You must top off with at least a 15W40 or 20W50 motor oil to the correct level besides changing the filter again.

If it quiets the engine and makes it driveable with the buildup of Tribofilm, instead of reimbursing me for the oil just donate the cost of the Swepco to MVS. Depending on the severity of the wear you maybe able to prolong the life of the engine but it's not a guarantee but definitely worth a try.

Whatever you do, do not drive that loose motor with the 5W30! Again, you must put in another filter also. Let me know if you want to experiment, if it doesn't work remove the Swepco and put it to good use in another car as the filter should remove any debris from the oil when the filter and oil are both fresh.
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306 Supreme Formula Engine Oil 20w50 Gal.
https://www.amazon.com/306-Supreme-Form ... KAOC&psc=1
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The additive package including DIMONYL® will overcome the small friction created by build up of the Tribofilm.

306 Supreme Formula Engine Oil
https://www.swepcolube.com/products/swe ... ngine-oil/

The high friction is relative depending on what friction it's comparing it. Besides in the right amount with a good additive package that's overcome while having the benefit of the Tribofilm on the internals of the engine. That film also helps with morning starts as it stays on the surfaces of the internals unlike oil going back to the pan. There will always be some oil residual but with Swepco it's going to be much more!

High Friction Mechanism of ZDDP Tribofilm Based on in situ AFM Observation of Nano-Friction and Adhesion Properties
https://link.springer.com/article/10.10 ... 22-01635-x
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[yanga001]

Update. Drained the oil and did an oil change. My magnetic oil pan plug was covered in small metal shavings. The Mann oil filter is really heavy so I know it also caught a lot of debris. The drained oil left golden color, non-magnetic particles on my draining felt. Car still runs but sounds like a bag of rocks. I’m sure there’s engine damage. Any ideas on what the particles are? Cylinder walls? Something else? The best this car can be is a short distance point A to point B vehicle without an engine tear down and rebuild.

Unfortunately the gold comes from the depths of the engine, and is usually rod bearing if i recall correctly. Ive heard of people changing rod bearings in car, but its a bit of a crap shoot considering we do not know the health of the rest of the engine.

[MadeInJapan]

I sent BKM a PM. Thanks for your willingness to help!! BKM. The picture on the right that shows the varnished (golden color look) on the piston rings (from the second link that that was shared regarding the 306 oil) looks an awful lot like the golden chips in my oil- in fact there was a small slightly circular, almost plastic or varnish feel to one of the pieces. Maybe this is a clue and not bearing pieces at all!??

[hausmeister]

Sorry about the s70, sounds like it is toast

5W-30 is too thin. the oil won't stay in the cam/valve region long enough. I'm running 10w-60 synthetic and it helps the engine stay calm and quiet. It's also excellent for track day use.
I tried 0W-40 synth, 5W-40 semi synth and 10w-40 dino in various p80ies, and 10W-60 is by far the best.

Just want to add my experience:
n/a s70 with low mileage engine ran great on 0w40, no issues
for my 850 I tried 0w40, then switched to 10w60, but I think it is too much. It cranked with much effort and it also sucks up a noticeable bit of power. Not sure then the pressure bypass in the filter activates, but might be counterproductive, not sure.
I am currently mixing 0w40 and 10w60 for a roughly 5w50 which seems to work great. Engine runs quiet and it is not too thick. Not sure how healthy the engine internals still are, but at least it sounds good.
I'd just suggest not to be afraid to experiment a bit with which viscosity to use.