I always try to search out the optimal lube program for a given firearm family. Within that, sometimes you find the need for ordinary temps, cold temps and in some cases wet conditions.

Revolvers require only a small amount of light oil on a few specific spots. Other firearms families, such as the M-1 Garand, requires quality grease mostly with oil on a few spots. The M-16 family requires mostly oil with grease on a few spots. The 1911 family runs fine with oil on everthing except a tiny dab of grease on sear/hammer hooks.

For oil these days I use Break Free LP (not CLP) as my primary oil. For grease Mobil 1 red synthetic grease is my choice. In both cases, a little goes a looong way.