I vowed years ag that I would never again respond to JAlex's pleas for help. The commentary over the years has devolved into a back-and-forth recourse of the classic 'fuel vs ignition' debate. I will offer the following comments and withdraw forever from the discussion: I suspect that JAlex's problems are the result of poor local fuel quality combined with local high-temp conditions. Most of us -- whether from the USA, Europe, or Canada -- are not qualified to provide proper guidance on this combination. Maybe not even Nissan. JAlex is prey to local tech help whose credentials are highly (self) promoted but probably sub-standard... but more than willing to take his money. It's too bad that we don't have some overarching expert who could just cut to the chase. All that aside, CZCC members (including JAlex) are the greatest and I hope this will end with JAlex piloting the Panama's best Z on his local streets.