Anyone have experience with QS Full Syn High Mileage? Its one of the few out there that meets Dexos spec. Thinking about using it for sisters 2012 Cruze 1.4 Turbo (150k mile). Replaced timing cover/oil pan gaskets, oil cooler gasket. Leaks have subsided except for what I believe is rear main seal leak (relative to what was happening before its not a big leak). I’m hoping that a high mileage may help a little. I tried M1 High Mileage (also dex approved). Engine was noticeably louder, so thats a no go.
QS Full Syn High Mileage
- Thread starter CapitalTruck
- Start date
Been using the QS Syn HM 5w30 for years. Good price at Wally World and great oil.
Add Liqui Moly Motor Oil Saver at next fresh oil change. Run your normal oci. It works good for seeping seals and gaskets, it may help in your case,
https://www.amazon.com/Liqui-Moly-2...5&sprefix=motor+oil+saver,aps,114&sr=8-5&th=1
https://www.amazon.com/Liqui-Moly-2...5&sprefix=motor+oil+saver,aps,114&sr=8-5&th=1
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