Fact or Fiction
 

went to get some oil today and was told by shop that I should only use semi Synthetic up until 4000 miles then go on to fully synthetic. is this right?

Dunno really. I thought it was just up to the 600 mile service??

Some people say that its best to use a semi synthetic oil during the running period to help with the run in process and when the engine is run in you should change to a fully synthetic type.

I just use the shell oil recomended in the manual!.
I beleive that shazzam did a detailed posting about this subject a little while ago.

And when it\'s run in........
 

....Don't forget Slick5o

How about this site

http://www.mototuneusa.com/break_in_secrets.htm

I used this on my previous 2 bikes, and the dyno method to bed in my new pistons after this winters rebuild.

Very interesting reading which ties in with a lot of stuff i've heard from other engine builders, i.e. not too gentle, vary the laod,no synthetic oil, but this is by far the most comprehensive article i've read. Great stuff

This is the page you get if you sign up for the newsletter

http://mototuneusa.com/thanx.htm

more stuff in there.

Just read this, and it is easy to understand the principles, and to be fair this is how they run the race bikes in, John had mine on his dyno and explained the process which is pretty much the same cycles as per the website.

Argh, dare i say this, but most people run theirs in upright and not on their side:o

Sorry

Ya cheeky git!

I think you'll find John did run mine in upright, but the fool let me have the keys... then it went horribly sideways and down..... fnarrrrgh!:frog: