i use rotella t syn in my voyager and it works well, but the voyager is water cooled and rotella t is 5/40 weight.
as cold as it gets in nebraska, i still use 20/50 amzoil (dealer stocks it)in my speedy and a napa gold filter every 4000 miles. it gets hot here in the summer and i like the idea of 50 weight for those days. i bought a magnetic drain plug for my next oil change. can't hurt.
5 weight seems too low for very cold days for a twin to me. i read some good things about rotella t though. it's diesel based oil, whatever that means.
rotella web site bob the oil guy oil freeforall got to forums for mc's
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