I bought a motorcycle/bicycle cable luber off eBay, worked pretty good.

http://www.ebay.com/itm/Motion-Pro-Cable-Luber-08-0182-Brand-New-100-Genuine-MP-Yamaha-Honda-Kawasaki/141588643345?_trksid=p2141725.c100338.m3726&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D20141212152715%26meid%3D003ef22ce80a484196ddad152036af42%26pid%3D100338%26rk%3D1%26rkt%3D26%26mehot%3Dag%26sd%3D221702973501