"Does washing-up liquid damage your vehicle? We asked Dr Bob Eden BSc
MSc PhD MICorr (Member of the Institute of Corrosion) for the truth:
“Washing up liquid does contain a ‘salt’ but this is the active
ingredient and should not be confused with road salt. There is
nothing in a washing-up liquid that will exacerbate corrosion –
there’s no sodium chloride salt to worry about. The issue regarding
corrosion is the ‘chloride’ bit of the salt. In ‘chloride nests’ at
the base of a corrosion pit, the chloride exists as hydrogen chloride,
which in damp conditions creates a solution of dilute hydrochloric
acid, and it’s this acid that does the damage. You need to avoid
‘chloride’ from any and all sources, e.g. seawater, road grit and fish
& chips (but not washing up liquid). When I wash my aluminium bodied
Lea Francis, a dash of Fairy is just fine…”
Apart from that, you're bang on the money. "
Fairy_soap_tyre_fittingOff to fit two tyres to the Duke wheels!
Good health, Bill