11-18-2017, 03:50 AM
I rode the Moto Guzzi this summer in temps past 115 (117-118F?) with Motoul 10W-60 synthetic.
I rode the Triumph two summers with temps past 115, with Castrol Power 1 20W/50 synthetic.
For the CB1100, figure one more oil change, probably February, with GN4 10W-30, then switch to 10W-40, probably in May/June.
The question is do I continue with Honda recommended GN4 or go to synthetic.
Since I have a proclivity to change oil frequently, switching to synthetic may be of less benefit.
If I do switch , then the question is Honda HP4 (MSRP $9.43/quart) or Castrol or maybe Motoul 4T 7100
Need to do more research, but I am presently inclined towards Castrol. Motoul is great oil, but VERY expensive.
Castrol is about $10.50 a quart at AutoZone or O'Reillys.
I rode the Triumph two summers with temps past 115, with Castrol Power 1 20W/50 synthetic.
For the CB1100, figure one more oil change, probably February, with GN4 10W-30, then switch to 10W-40, probably in May/June.
The question is do I continue with Honda recommended GN4 or go to synthetic.
Since I have a proclivity to change oil frequently, switching to synthetic may be of less benefit.
If I do switch , then the question is Honda HP4 (MSRP $9.43/quart) or Castrol or maybe Motoul 4T 7100
Need to do more research, but I am presently inclined towards Castrol. Motoul is great oil, but VERY expensive.
Castrol is about $10.50 a quart at AutoZone or O'Reillys.