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In general:
10w40 unless the temps are so hot that it's uncomfortable to stand barefoot on asphault -- then use 20w50.
API SF/SG or SH rated oils. No SJ/SL/SK rated ones.
JASO MA rated is a bonus, but highly recommended.
There's a long list of motorcycle oils that match these specs, including:
Castrol ACT Evo
Castrol GPS
Mobil 1 MX4T
Mobil 1 VTwin
Royal Purple CycleMax
Motorex
Valvoline ATV
Valvoline Motorcycle
etc.
In general:
10w40 unless the temps are so hot that it's uncomfortable to stand barefoot on asphault -- then use 20w50.
API SF/SG or SH rated oils. No SJ/SL/SK rated ones.
JASO MA rated is a bonus, but highly recommended.
There's a long list of motorcycle oils that match these specs, including:
Castrol ACT Evo
Castrol GPS
Mobil 1 MX4T
Mobil 1 VTwin
Royal Purple CycleMax
Motorex
Valvoline ATV
Valvoline Motorcycle
etc.
Cheers
=-= The CyberPoet
I had picked up Valvoline motorcycle oil at an Auto Zone a couple of months ago (and am presently in the midst of oil pan issues, as CP may recall). That oil can states:
Valvoline
SAE 10W-40
Meets or exceeds
JASO MA, API SF/SG/SJ
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