Salt on the roads.

[Parazine]

Years ago, I used my 4 seat tourer on the BA7C Christmas events (Boxing day, New Years day) and put it away without hosing it down underneath. When I looked closely in February, the car was covered underneath with red rust, horrible to see.

Since then, I avoid salted roads (not much chance of those at the moment, at least not here in Wiltshire) and if I do have to venture out on them, I hose or power-wash the whole underneath with water as soon as possible afterwards. It's only 15 minutes or so work and saves a lot of corrosion worries......