Question about 2002 Buick Century
You could try putting a good engine oil flush in, if the inside of the engine is really dirty you might have to flush it more than once.
Posted on May 19, 2011
Your engine has hydraulic lifters and it sounds as though you need to use 5/30 viscosity motor oil. I don't know your location but if your winter temperatures get down into the teens or lower then this step should solve your problem. The manual recommends 10/30 but that viscosity doesn't cut it in the colder climes.
All the best
Posted on May 18, 2011
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Posted on Jan 02, 2017
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