[rpeters549]

Yes, you can use synthetic.
No, it is not needed, but your choice.
Just select one that is not 'energy conserving'.

If it is the longevity issue, dozens or ore on this forum have 100k, 200k, and more using your basic over the counter oil. Like DELO. Like standard 10w-40. I have used regular and synthetic over the years. The bike gets basic oil (DELO in my case) and my '08 Focus gets synthetic. My Bronco? Whatever I have on hand be it DELO, 10w-40 blended, it just does not care.

 

[rpeters549]

I saw a video on Youtube where someone drained the oil out of a Honda Cub, filled it with used (and strained) french fry oil from a fast food place, and rode it several thousand miles. It was still running fine.

...And made everyone hungry on the road!

I have seen some complain that the DELO is for diesel motors (true) that see lower RPM's. Since these behemoths redline at 5500, and I typically am below 4000, I am ok with that.

Not bad mouthing synthetics - I am a big fan of them in certain applications. The Goldwing crankcase just is not one of them anymore.

 

[rpeters549]

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