Re: Alltogether Now
"Urea injection, which only really works during emissions tests too."
Would you like to ref. that. because AFAIK it's simply not true.
Petrol engines also produce less nox than diesel but still a moderate amount.
In my experience diesels use considerably less fuel ( by volume) than petrol engines in similar vehicles partly due to the increased energy content of diesel and partly due to the better thermodynamic efficiency. Indeed large ship diesels are the most efficient internal combustion engines that are available.
Biting the hand that feeds IT
