I've ordered Castrol Power RS 4T Synthetic from Amazon (pack of 6). At the time, seemed as nice deal ($40). Not even 5 miles after that oil change, I've noticed clutch slippage and how hard it is to switch gears especially into second gear, not to mention how jerky the bike behaved. After a bit of research online (KLR forum), I've noticed that people speak about this oil A LOT and everybody likes it. I was a bit skeptical. Heavy duty oil into motorcycle? I have gave it a try. This time with a HifloFiltro instead K&N and non synthetic oil. Why the heck I did not this earlier? I don't think I will EVER out any other oil than Rotella T into my bike. My Kawi loves it, my wallet loves it as well. Shifting is smooth, bike runs quietly, does not burn oil at all (like Castrol) even KLR's are quite known for that. It all get down to JASO MA1/MA2 standard and Rotella T goes beyond that. I go with this oil in summer, 5w-40 syn in fall/winter.
Highly recommended oil.
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