2011-05-04 18:58:39auto rickshaws
Paul D

chillcast@googlemail...
82.18.130.183

Converting two-stroke engines to run on gas resulted in higher carbon emissions as a result of increased releases of methane:

http://environmentalresearchweb.org/cws/article/news/45869

The researchers found that changing the engines to 4-stroke would have had better results.

2011-05-04 21:05:20
nealjking

nealjking@gmail...
84.151.48.225

I have heard that laser-based replacements for spark plugs are under development: they should greatly improve fuel-burning efficiency.