- Joined
- Sep 22, 2020
- Messages
- 8
My bike is a 2002 R1150GSA. Bought it August of 2020 with 5,400 miles. 25,600 currently and recently switched to “full” synthetic 5w 40 Schaefer’s OTR. This is a dry clutch bike. To date I’ve used 20/50 Casteroil summer and 15W 40 Rotella winter.
According to BMW I’m ok with a 10W or 15W 40 up to 86F. Then I’m to go to a 15W or 20W 50 weight oil. This air cooled bike runs year around at 5 bars on the temp gauge, or about 221F oil temp 98% of the time. Last summer in traffic above 100F I would run 6 bars off and on, or about 266F oil temp.
The bike makes less noise on start up and starts a little faster with the 5w 40 Schaefer’s. Nothing major, it’s just seems to like the oil. It would be nice to run the 5W 40 year around. It’s also handy because I stock it for my 7.3 Power Stroke.
I plan to keep the bike, it’s now my only bike, and I ride about 20,000 miles per year.
Here’s where I need some enlightening: What happens at, or above, 86F for me to need a heavier oil? Isn’t my engine oil temp at 5 bars 221F no matter what the air temp is?
Thanks for reading this far and thanks in advance for the help!
According to BMW I’m ok with a 10W or 15W 40 up to 86F. Then I’m to go to a 15W or 20W 50 weight oil. This air cooled bike runs year around at 5 bars on the temp gauge, or about 221F oil temp 98% of the time. Last summer in traffic above 100F I would run 6 bars off and on, or about 266F oil temp.
The bike makes less noise on start up and starts a little faster with the 5w 40 Schaefer’s. Nothing major, it’s just seems to like the oil. It would be nice to run the 5W 40 year around. It’s also handy because I stock it for my 7.3 Power Stroke.
I plan to keep the bike, it’s now my only bike, and I ride about 20,000 miles per year.
Here’s where I need some enlightening: What happens at, or above, 86F for me to need a heavier oil? Isn’t my engine oil temp at 5 bars 221F no matter what the air temp is?
Thanks for reading this far and thanks in advance for the help!