Yes, I was thinking of using diesel to clean the chain too. Tho I didn't think about diesel not being compatible with some special bicycle chain lubes...I aint got time/energy to do the extra wash with detergent/hot water.

Maybe the mechanics at the Giro figure they have to clean everything daily anyway, so they use a more basic and traditional oil type lube...if it picks up a little more crap in the space of 1 day (180kms), what difference does it make to them?

I'd like one of those little electric pressure washers with a detergent bottle feeding in...set it up near the garage door and clean the whole chain/cassette/derailleur in seconds when I get back from a ride.