The cylinders will be steel lined or Nikasil coated which is a very hard coating, the only aluminium bits will be the inlet manifold and cylinder head intake ports that will come into contact with the liquid methanol. Most if not all modern engines have aluminium intakes and heads so you`ll be in the same boat as everyone else on this board.
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VW Mk2 Golf 16VG60 - Mitsubishi GTO TT
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