Posted by charles todd on October 25, 2011 at 09:29:28 from (144.191.148.3):
In Reply to: Best 1/2 Ton Truck posted by 1970-1655 on August 25, 2011 at 08:28:42:
Quoting Removed, click Modern View to see
I think B&D was looking at the cost to repair when the 800 ft/lb diesel blows a head gasket, needs injector/pump work or just grenades. Gassers can get 200k-300k miles with nothing more than oil changes and spark plugs. All this while climbing to the top of the hill 5 mph slower with cheaper fuel.
Heavy industries use diesel because it is not practical to use gasoline in those applications. A 3/4 ton "toy hauler" or "camper tow rig" is not heavy industry. Most people with diesels maybe tow 3-4 times a year. The rest of the time it is a grocery getter. I'd buy a new 8.1L if GM started making them again.
Direct injection is real and has been around. Many smaller engines are using it (our 2008 MINI Cooper S, 1.6L) for increased power and fuel economy. Example, the MINI has 172 hp and 177 lb-ft with a flat torque curve from 1800 to redline out of a 1.6L! All while getting 30 in town and 34 hwy, real mileage numbers with me hanging my foot in it most of the time. Who knows, once direct injection gas engines become more popular, they may replace small diesels.
Look at the Ford Eco-Boost V6, it delivers V8 power and V6 economy with direct injection, turbo charging. Imagine if this was done with a gasoline V8? Competition for diesels? I thinks so. Cheaper per mile to operate, I think so.
I am not trying to step on toes here, but I feel that direct injection gasoline is more practical in light duty (one ton and smaller) than diesels. These vehicles are subjected to stop-and-go driving, short distances, and frequent cold starts. Industrial equipment and road tractors run for hours on end under load, thus suited for diesel combustion.
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