Topic: switching from dino oil to synthetic

[Bob Wessner]

The U.S. Library of Congress is housing every single "tweet" (why, I have no idea). Surely they would be interested in housing all our oil threads.. right? 

[MCRider]

There are people still repeating the same old nonsense.

Twas always, twill ever be.

[Skunk Stripe]

What nonsense would that be? And is it actually nonsense or just nonsense to you? Gotta be specific.

[Dave-and-his-550]

I'm glad he did. Although I once read a bit about this, I am now reminded that I should switch out my Castrol 10w40 conventional and put in a motorcycle specific synthetic like that Rotella T.

Anybody running this currently?

[Skunk Stripe]

I am running the synthetic rotella and it has been really good. The convention rotella worked good to but I noticed the difference going to synth.

[Old75_ratafe]

Me and a customer at my work were talking about the rotella he was saying they changed it a few years ago and it has detergent in it or something to that effect now.

[Skunk Stripe]

Of course it does. Almost ALL common motor oils have for years. that is no secret. If they didn't, sludge would be a major problem in every engine.

[ryani]

I've been running syn Rotella T 5w-40 in all my motorcycles for years.  Hi performance street bikes to 2 stroke dirt bike gear boxes.  I never had a clutch slip in any of them.  I abused the crap out of that clutch on the single track in colorado and it always holds up.

[Old75_ratafe]

OK so now here was my experience... my bike is 100% original seal wise.  With 10W40 synthetic it ran quieter... but also leaked like a sive from the shifter seal.  Switched back this change and it runs a little louder for the first few minutes (typical valvetrain honda noise) but no leaks.  Not saying it caused it but my guess is the seal material can't handle it.  If I rebuilt my engine with modern seals I would bet it would do just fine.