I live in one of those very hot climates (does 110 qualify), and I have not had any problems to speak of with 10W/40, but then I do, some who are knowledgeable than myself, believe that the 20W/50 might be a bit thick for this engine, but that also is hard to prove, it is water cooled and not as prone to overheat as air cooled engines in these conditions.
As far as brand, dino or syn, you choose, I have my preference, as do others and I am not here to convert or preach to the choir or start any thread war's.
"I am a modern cowboy, on a steel horse I ride"
09 VN900 Classic
Big 3 +++++
Last edited by Bytehead; 04-02-2010 at 11:32 PM.
Reason: bad eyes need new glasses