The specific BTU's vary widely. Both gasoline and diesel are blended according to the ambient temperature where they are sold and the local emission regulations. You can find many different numbers. In fact, the winter blend of diesel sold at the pump may have 30,000 fewer BTU's than the summer blend. That is why I said "roughly". If you take comparative products sold in a given market at the same time, you will indeed see "roughly" 30% more BTU's in the diesel. I will admit that during winter in the north, the percentage difference is reduced. Some States or Counties mandate a 10% ethanol blend in gasoline. Some cities have been targeted by the EPA to reduce tailpipe emissions. That screws up the numbers even more. I worked at British Petroleum for 10 years and did not make these numbers up.
Hope this helps... -Dave Walton 94 S350 99 E300 On 10/27/05, ned kleinhenz <[EMAIL PROTECTED]> wrote: > << Regardless of how the fuel is ignited, diesel contains roughly 30% > more BTU's than gasoline.>> > > Dave - According to my reference books that is not accurate. > > According to "Internal Combustion Engines" a mechanical engineering text > book by Obert - > > Motor gasoline - 20,300 Btu/lb or 124,300 Btu/gal > > Diesel No 2 - 19,700 Btu/lb or 137,000 Btu/gal > > Diesel fuel contains about 10% more chemical energy than gasoline. > Diesel No 1 values are similar. > The hottest of any fuel oil is "No 5 light" at 151,000 Btu/gal. But No 5 > light is very dense and viscous. > > Ned Kleinhenz > _______________________________________ > For new parts see official list sponsor: http://www.buymbparts.com/ > For used parts email [EMAIL PROTECTED] > > To Unsubscribe or change delivery options go to: > http://striplin.net/mailman/listinfo/mercedes_striplin.net >
