Turtle n Peeps wrote:
Diesel has about 12% more energy, by volume, than gasoline. By unit weight gasoline actually contains more energy than diesel does. When you consider the lost diesel fuel burnt in the DPF and the cost of eurea the diesel is loosing its advantage. Gasoline engines, on the other hand, are gaining efficiency with technology such as DI and higher cylinder pressures.
Got new for you. In 1937 HP for HP diesels got about 30% better fuel economy than a gasoline engine. In 2017 HP for HP, diesels get about 30% better fuel economy. Those are facts.
The 1969 gas truck my dad towed with got 9 to 10 MPG. Towing the exact same trailer I get 12 to 13 MPG with my 93 diesel. Would you look at that! 30% difference! My neighbor tows a TT about the same size and weight as I have with his new Ford EB gas truck. He gets 9 to 10 MPG towing. When I tow with my 06 diesel truck I get 12 to 13 MPG. There's that magic 30% number again! :B
That's why the EB people hearts sank after they got their mileage figures back after towing their trailers for the first time.
Here are some BSFC numbers for the two:
Diesel engine= .28- .36
injected gas= .40- .48
Carb gas= .48- .60
Here is a really good article. Diesel vs gasoline. Please note the power differences between gas and diesel even if the BSFC figures were the same.
More than half of the cars in Europe are diesel.
Diesel is going to be around for a long time.
BTW, look at the happen to the Feds climate change web page hours after the new admin took office. :E
I've had diesel pickups since 1993. My 93 GMC got 24 mpg on the highway. (Imperial gal) My new Ford gets 20 mpg. Additionally it uses def. Our '92 Honda Accord got 40 mpg (imp). Our 2017 Honda Civic is a bigger car and it gets over 50 mpg.
