That is a good question. At this point in time I will be using the Volvo specified oil that Castrol has along with Liqui Moly. I can catch free shipping on a few websites seeing I change the oil on 3 Volvos that use the 0W20. On this particular XC60, it had used the formerly specd 5W30 oil which likely contributed to the oil consumption issue. Once the oil drains are opened,I would hope the Volvo V 0W20 will keep things flowing.I might just do 6k oil changes and not wait the 10k miles.The 10k oil change you see on my first post had the Volvo specd oil in it. That tells me that oil does not have a high amount of cleaner in it as I saw quick results with the HPL cleaner oil.So the Volvo oil might maintain a properly maintained Volvo 4 cylinder but will not clean a engine with consumption issues. I wont rule out HPL oil use as I believe they do have a more robust oil additive package along with higher quality synthetic oil base.Do you plan on using their oil? The cleaner is just an initial and the oil must be used the rest of the way. If HPL cleans up that mess I’m sold. Please keep us updated.
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