If it's a seal there will be evidence of leakage, somewhere.
But yeah mineral oil is less unpleasant stuff.
Can't find leakage, lbs man thought it was a seal/valve in the brake lever/reservoir giving way under pressure. Is that unlikely? It's how he explained the initial bite then instant fade in power...
@Howard started
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If it's a seal there will be evidence of leakage, somewhere.
But yeah mineral oil is less unpleasant stuff.