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G1 vs. G2 vs. G4
just had my 1200 mile service done. They didnt have the right oil and had to wait 3 days and then when they got it in, they put in G1 and G2 instead of G2 and G4. Based on advise from another member, I will be having them replace the oil and asking for an extended warranty from BMW since I have no idea what the impact of having the wrong oils in there is.
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