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  1. General Chat
    Hey Guys, I bought some Carlube 10W/40 semi-synthetic A3/B4 oil for my car yesterday. Normally if I buy it at the shop I don't take notice of that A3/B3/B4 rating. However, I decided to look it up and turns out that B4 is spec'd for high performance cars and B3 is for older cars? So my...
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