Valvoline VV851 Racing Oil
Outstanding HDF Member
Joined: Jan 2014
Posts: 2,181
Likes: 488
From: Central California
The only real way of knowing, is to have a sample tested. However, it's much more economical and convenient to simply change at designated intervals. Oil today is much better and lasts longer that oil of the past. Less fuel contamination is also a factor with the extended change intervals recommended these days.
Even so, these motorcycles run pretty hot, which also breaks down some of the oil components. So, I prefer to change engine oil at 3000 miles. After all, we're only talking three quarts. As such, my personal view is rather than spending money on "High Whiz Bang" oil that supposedly extended your change interval, it is far better to have decent quality clean oil that is changed more frequently.
Even so, these motorcycles run pretty hot, which also breaks down some of the oil components. So, I prefer to change engine oil at 3000 miles. After all, we're only talking three quarts. As such, my personal view is rather than spending money on "High Whiz Bang" oil that supposedly extended your change interval, it is far better to have decent quality clean oil that is changed more frequently.
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