Checking on Redline's website, the following is posted:

20W60 - Specifically blended for air-cooled V-Twin engines with traditionally wide clearances like Knuckleheads, Shovelheads, and Panheads engines.

20W50 - Designed for the latest Big-Twin motorcycle engines that specify 20W50 motor oil, including including Evolution, Twin Cam, and aftermarket engines of similar design

 

I have been running the 20/60 for the last 5 years during the summer months. I ride in 100+ temps and I like it a lot. This year I couldn't find it local so I filled her up with Torco 50wt. Can you post your source for the Redline .

 

I've received a few PM's asking where I got the Redline 20W60 Motorcycle Oil at such a low price, but as you will notice (from the post date) that was back in February of 2009.

There was a seller on Amazon apparently 'closing out his stock', so I purchased a couple of cases. I also posted the link to the sale, in case anyone else was interested, and within a few days the webpage showed "no longer in stock". Guess others took advantage of the sale as well.

I haven't checked lately, but I imagine the ninety some dollar a case shipped was just a one time super deal that won't be repeated....