Yep, the team uses, or pretends to use, the products of their sponsors.

The press often shows team mech's using soap suds to wipe down the drivetrain, but I've always noticed how soapy water creeps into everything, and I would expect that to lead to corrosion, bearing and cable contamination, lube getting washed out, etc.

I wipe down drivetrains (after lubing) with a ~dirty terry-cloth rag, and use the fresh ones for wiping down and compounding down the prettier parts. A spritz of ArmorAll on the cloth actually cuts sports drink residue and gives the surfaces some resistance to things like earthworm bits getting stuck to the downtube. Just don't get the AA on saddles, tires, rims, grips or levers!