The "W" in a multigrade oil grade stands for Weight, not "Winter". 20W50, for example, means the oil behaves like 20Weight when cold, and 50weight when hot, the end result being an oil that stays at about the same viscosity throughout a range of temperature. The farther "apart" the two numbers are, the wider the temperature range the oil can be suitable for. 20W50 is pretty thick oil, especially for some of the more temperate regions in India. If the temps where you are rarely get above 40 in the summer, especially if you don't do a lot of slow riding in traffic, you could probably get away with a 10W oil, which conceivably can improve your mileage as well as making the engine and transmission smoother when cold. If you live in someplace like Rajasthan, then stick with 20W50.
Thank you so Much Mountain for all the info provided by you so far it has clarified a lot of doubts about how a machine like The Ktm Duke works its characteristics etc. Looking forward for more such valueable post's from your end. Requesting you to keep on pouring your vast knowledge on this thread so we could learn more ..Cheers


Mostly users are inclined towards "clearing the emission norms" reason. This was also used in age old racing cars and old Mercs or Nissans, but eventually most of them shifted to single sparks also.

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