Hebbes...
Choosing a motorcycle coolant should be straightforward. Motorcycle engines are made of aluminium. It stands to reason that if we chose a name brand coolant that featured compatibility with aluminium as well as 7 or 8 other metals, we'd be safe, right?
Well it turns out that we'd be wrong. At least for Honda motorcycles. Coolants do more than prevent freezing and protect from overheating. They also protect from corrosion. Traditional automotive coolant contains silicates as part of its anti-corrosive additive mix. It appears that silicates (abrasive in nature) damage the Honda water-pump seals. There have been a spate of Honda water-pump failures that typically occur within one year of having replaced the OEM coolant with silicate-based automotive coolant.
Oooooh. Dat wist ik niet. Maar als ik het zo lees, dan is het eigenlijke probleem, de seals die Honda gebruikt in de waterpomp.