Quote:
Originally Posted by Bob KellyIII
Good call Jay ! I didn't think to ask that and that does matter !
unknown to many engine oil will cause poor shifting but the oil in question has to be a really poor one.... back when I was a kid I got a 2 gal can of cheap motor oil and put it in the Honda 50cc.... it started having problems shifting
and the clutch was grabby and the engine just sounded noisy I drained out that oil and put in Valvoline and all those problems went away. quality oil is essential in motorcycles !
.....
Bob...
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Definitely don't want to start an oil war....
But from my personal experience of using Rotella t6 5w-40 on long hot rides the oil seems to fall apart and I experience notchy shifting and lot of from 1st to 2nd faults neutrals.
Normally I would not speak badly about Rotella but I can back up my statement because I have 2 07 pregens and the second bike starts doing the same behavior within minutes of mine.
Here's where I cut my own head off...
I've switched both bikes over to Mobil 4T 10w-40 and issues have disappeared and the engine and valve train is almost silent.
Just my opinion, let's focus on the issue and not turn this into another oil thread.