What brand of SAE 80 hypoid gear oil do most of ya"ll use for your 1800 and how often do you change it.
I use Amsoil 75W-90 synthetic & change every year. This is one area I believe synthetic makes sense for even the frugal minded people. Because it only takes a few oz's, buying the 'cheap' stuff will save less than a dollar per change so less than a tank of gas over the life of the bike & since you can safely go longer each change it would be a wash.
When was you all's first change? I read on here that some suspect that Honda puts some sort of additive in and you should wait on your first change. Not sure if there's any proof of that or a rumor.