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Whats the best weight oil to use in a 2000 Lesabre

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Posted on Jan 02, 2017

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SOURCE: weight oil?

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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SOURCE: What weight of oil does my 2004 Lesabre require?

the oil weight is listed right on the oil fill cap on the engine. more then likely 10w30

Posted on Nov 17, 2009

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