Colourlock strong leather cleaner does wonders on these greasy steering wheels. As it's called, it's pretty strong. So I wouldn't use it as a monthly cleaner, more as like a one time mow-down, then maintain afterwards with more mild alternatives.
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* 2011 M3 DCT * Built 4.4L Stroker * Gintani supercharger * Brembo GT * BBS FI * OHLINS * Nardo Grey *
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