Question about 1994 Buick LeSabre

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Weight oil? what weight oil should i use in my 94 buick lesabre it has 224,00 miles?

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  • wilsondesmon Jun 02, 2009

    i'm using 10w 40 now thats why i asked because one the car warms up and you start to drive it it starts to knock a little

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If it's an engine that's never been rebuilt, I would use 20W-50, High Mileage formula, non-synthetic.
20w-50 for the Summer,
10w-40 for the Winter.
High Mileage Formula reconditions the seals.
Synthetic molecules are smaller than non-Synthetic. So, you don't want oil to go through the gaskets easier. Non-Synthetic is best.

Posted on Jun 02, 2009

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  • Buick Master
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I'd use 5 w 30 in cold or cool weather, then switch to 10 w 30 or, 10 w 40, when it gets hotter.

Posted on Jun 01, 2009

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