So had bike out over New Years…bought a nice fishing shack..bike was awesome pulling my shack and brother’s wood shack. Not a lot of snow so on hard pack on ice the bike ripped along very well.

Question…colder mornings my nephew’s 650 xmr started way better….
Difference:
Smaller displacement
I have whatever oil can am came with. He runs 0 40 semi synth
He put in a small secondary battery in his back box for winching, starting etc…

Was a noticeable difference starting….

Should I run diff oil in winter than stock?
What are your thoughts on that secondary non atv battery?