Anyone have experience with QS Full Synthetic 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 MrkofXcellence
- Start date
Been using the Quaker State Synthetic High Mileage 5w30 for years. Good price at Walmart 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
Really good oil for the price like mentioned previous. Have used it multiple multiple times over the years with zero issues.
Thank you guys for all the good feedback
Thanks for the good prod advice. Never seen it before.
I have a 93 Chevy k1500 with the 350. It will have a little bead of oil appear at the back of the oil pan and on the transmission. If I keep motor oil saver in it it will stay dry so I just put in a can each time. It works for leaks like that if the seal is just dried up.
If they are rubber seals. If it is an RTV thing, it won't help at all. I've had very good results with ATP AT-205 in different applications.
It must be a rubber seal on mine that’s leaking, since it stops it. RTV is a silicone elastomer, not nitrile or neoprene, so it makes sense it wouldn’t work because plasticizers don’t affect silicone. ATP wouldn't do anything either to silicone. I do hestitate on using ATP too often (although it does work on rubber) as I understand it can oversoften seals. Motor oil saver does seem to be less aggresive when working on rubber seals. Motor oil saver does take longer to stop my leak than compared to ATP. But in any case if you have a damaged seal, none of these products will work.
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