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  1. S

    0W-20 vs 0W-40 in GM 2.0 turbo

    Reading about GM's decision to go from a 0W20 to a 0W40 in the L87 engines brings a question. The GM 2.0 turbo requires 0W20 as the recommended viscosity. My 2.0 as well as other 2.0 turbo the GM puts in the buick models from China are experiencing high oil consumption. Would going to a 0W40...
  2. S

    2025 LSY oil consumption

    My 2025 Buick Envision uses about a quart of 0W20 in 1600 miles. Is that ok?
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