ive tried
SHELL HELIX ECO-10 (10-30) completely shit...
ROYAL PURPLE (10-40) loss viscosity at about 3500KM shit...
now back to
GENUINE HONDA OIL "FEO" think i will just stick to this..
ive been told not much oil can put up with 9000RPM.. and last the duration it is expected to.. so that explains it...
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