09-09-13, 03:44 PM
Call me a cheap bast*rd if you like but I have been applying a few squirts of 80w90 gear every three days or so for over a year and 15000 miles and everything looks alright as far as I can tell. I haven't had to tighten the chain yet, but that could also be because my ride isn't all that demanding - 60% of it on motorway etc. I apply it when the chain is warm as soon as I get back from work, and let it sit over night. Works for me. 1L of the stuff, costs 10-15 quid, and lasts me over a year.