Probably going to drop the oil (with around 300 miles on it) that came in it and put in Mobile 1 V twin 20W50. That's what I put in the KLX230 but that bike always shifted smooth and quiet. BTW I wondered if the 20w50 would cause a hit to the gas milage of 74 mpg on the KLX. Then at it's next fill after oil change up it jumped to 78 mpg. Could be variance of the gas pump with this two gal tank. Also just filled up the W and it figured at 94 mpg. It's last fill was 84 mpg. Still breaking in I guess.