Just did the 500 mile change. I was about nuts trying to find any oils at Wal-Mart or Auto Zone, Advance Auto, etc that were not now SM rated. All my old favorite inexpensive syn-blends are now SM, meaning with friction modifiers, and I didn't want to risk clutch slippage. And the cycle dealers had no decent oil under $10 a quart.
So, on a whim I went to the little local auto parts store here and they had the perfect combo of oils at reasonable prices.
$2.89 quart 10W40 Pennzoil Motorcyle oil (dino) meets SG, SH and, according to the Pennzoil web site, exceeds JASO-MA.
$7.70 quart 20W50 Mobil 1 V-Twin motorcycle oil, full synthetic, meets SG, SH and JASO-MA.
Both oils are fully compabible with the other.
Two quarts of each gets you 15W45 semi-syn that meets all warranty requirements listed in the Triumph Owner's Manual.
Total cost, before tax = $21.18
If you are struggling with $50 oil changes you might consider this option. Then again, you have to be a little bit poor and a whole lot cheap to even care. And I am.
Monte
