another oil ?
 

yes i know there is a search button but i know some of u run delo and rotella but will synthetic 15w40 be allright. I really need to change my oil and can't find any amsoil.

If you are refering to Mobile 1, yes it will work, and work great. Thats what I have been running up until my last oil change, but for $10 less the full synthetic Rotella works as good or better.

MoTul Semi Syn - Works great & save some $

I'm gonna use motorcraft 15w40 diesel oil cause it is what i have at work.

as long as it dose not say "energy conserving" you should be ok
http://www.calsci.com/motorcycleinfo/Consumables.html

BP 2380 Turbine Oil. At $12/qt it's gotta be good.

I just use Pro Honda 10w40 in my Hawk and my wife's SV. Last time I bought some it was $17 for a gallon or $5 a quart. Price is going to go up though just like gas.

The rotella syn is a great bang for the buck oil and I've used it mainly during our short winters but non-ec mobil one 15-50w is right down the shelf and would be better for the summer heat.

Bottom line: if you change your oil every 3k or 6 months, whichever comes first, then it doesn't really matter what you use (within reason of course) but, hey, use whatever makes you feel good.