what lube for shimano deore chainset

FWIW the only thing oiling a chain does is stop it from rusting. An oiled chain is no more efficient than a dry one (provided they are both clean), not unless you measure down to hundredths of a percent (Bicycling Science).

Oils are better in wet conditions but pick up more dirt; waxes or dry lubes tend to stay cleaner but wash off more easily. Other than that, I really don't think there's a lot in it - it doesn't matter so much what you use, so long as you clean and oil it regularly.

To clean my drivetrain I:

1. Remove chain and drop it in a pot of diesel to soak (or your preferred solvent... diesel is good because it works very effectively, it's cheap, and it's also a light lubricant in itself... and unlike petrol, it's not flammable under normal conditions)
   
2. Scrub all sprockets and mechs with a stuff brush and hot water with washing up liquid
   
3. Very thoroughly rinse everything (to get the washing up liquid off)
   
4. Lube the mechs
   
5. Swish chain around until it's clean
   
6. Re-attach chain, lube with hypoid gear oil, wipe off excess
   
   

Then wipe down with baby-wipe and quick re-lube after every ride.