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Message: [QUOTE="2007LucerneCXL, post: 278187, member: 38546"]Temporary fixes like going up in oil weight 10W-30, high milage may slow it down a bit that's all. Additives, basically heavy weight oils seems like a good idea, but in the long run may cause more problems than fix, thats unless you are going to sell it, just go ask any shady used car dealer about "mechanic in a can" LOL.  Considering that you can't see it coming out, this would be the valve covers, oil pan, intake, seals, etc it must be going in. It's in range of kinda being acceptable for the milage and poor previous mantanance, it's not great but ok considering.Repairs may be lower and upper intake manifold gaskets, valve guide seals and or heads reworked. If it's running ok and you have to add 3 quarts in every 3000 miles, the add oil may be the least expensive route.I have a 180k on a 95 lesabre and my fix for the same problem is to watch for sales on cases of oil lol. It's a decision that only you can make if it's worth it or not, best of luck.[/QUOTE]