Saturn S-Series
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Saturn 2001 SL1 has 1 cylinder 100 compression and other cylinders have 125 Is this bad?

101112

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01/31/2007

There should only be a 10% difference between all the cylinders so using the math, the lowest a cylinder should be 112-113. Your lowest cylinder is 20% off, not 10%. I don't think it's to bsd yet, keep an eye on it, if it gets worse it could have a bad valve or ablone head gasket.