Best Oil

[thstone]

- 0w40 or 5w40
- Mobil 1 or Castrol Syntec/Edge
- Change every 5K miles
- Manually check the filter element for metal debris (small yellow/brown rubbery bits are leftover engine gasket seal and are generally ok)

[Johnny Danger]

I've heard good things about Redline and Motul also .

[Joel-Box-ster]

5W40 for winter and 10W40 or 20W50 for summer.

[Idaho Red Rocket 3]

My wife drives the 2K S as her daily driver. It now has 68K miles as well. I think many of the oils folks here on the forum recommend are probably OK. With over 40 years of motorcycling I choose to spend my money on Castrol Syntec 10W-40 for year round use. I am currently considering going to 10W-50 or 15W-50 for summer. Not sure if there is a discernible benefit yet.

I truly believe Mobil 1 is no longer the oil it used to be. I believe they stopped using Base 4 and 5 stocks and now only use Base 3. What a shame.

[jotoole]

Just this week changed oil on my 2000 base w/92,300 mi from Castrol Syntec to Redline 5w40. Engine is much smoother, not that it wasn't smooth before, but such improvement has me wondering. Been changing oil + filter every 5,000 mi.

+1 on oil filter autopsy. Every change.