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Applicability of Synthetic Motor Oil in a 2003 Chevrolet Impala
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Applicability of Synthetic Motor Oil in a 2003 Chevrolet Impala
I recently purchased a 2003 Impala and wanted to start using Mobil 1 synthetic motor oil. I asked GM about using any brand of synthetic and they did not recommend it unless the temperatures were very cold. They also advised that the use of a synthetic could void the warranty. Do you know if I am getting incorrect advice? Thanks. PS: I purchased regular Mobil 5W-30 per GM recommendations.
-- Tom Hughes, Billings, MT
You are getting incorrect advice. Mobil 1 fully synthetic oil is an excellent choice for all operating conditions and will not void your warranty. In fact, General Motors uses Mobil 1 as original equipment (factory fill) on many of its vehicles.
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