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Diesel Toyota Tundra

Toyota Toys with Truck Buyers

 

 

 

 

Toyota has released no definitive plans to offer a diesel pickup in the North American marketplace. However, they have been publically playing with the concept for many years now. Toyota showed off a 1 ton dual rear wheel version of their Tundra pickup with an 8.0L Hino turbodiesel between the fenders at the 2007 & 2008 SEMA show. More recently, rumors were leaked that Toyota was planning to offer a 4.5L V-8 diesel in the Tundra, an engine that they currently produce for the Australian market. Many believed this engine would become available for the 2010 model year, and later reports suggested 2011/2012 model years would finally receive a diesel. Needless to say, the engine hasn't made it to the U.S. yet, and Toyota fans are still waiting. There have also been unconfirmed rumors of a 7.0L floating around. Toyota acquired GM's stake in Isuzu in 2006; could they be cornering the diesel pickup market? Seems Toyota has given up on the idea, at least for the short term, but diesel options for the Ram 1500 and Nissan Titan could respark Toyota's interest.

 

8.0L Hino J08E-TB

Configuration:

Inline 6 cylinder

Displacement:

8.0 liters

Bore x Stroke:

4.41" x 5.12"

Injection:

Common rail

Aspiration:

Single turbocharger, intercooled

Horsepower:

260 hp @ 2,500 rpm

Torque:

585 lb-ft @ 1,500 rpm

 

4.5L Toyota Diesel V8

Configuration:

V8 Turbodiesel DOHC

Displacement:

4.5 liters

Block/Head Material:

• Compact graphite iron (CGI) block.
• Cast aluminum cylinder heads.

Injection:

Common rail

Aspiration:

Twin turbocharged

Horsepower:

265 hp @ 3,400 rpm

Torque:

480 lb-ft @ 1,600 rpm

 

Toyota representatives have been quoted saying, "[The Tundra] may be offered with an all new clean-diesel option in the near future." While the 8.0L Hino powered truck was a neat concept, it was far from realistic. It would be difficult to control the emissions & fuel economy of an engine that large, and its limited operating range was meant for a commercial medium/heavy duty truck, not a civilian vehicle. Not to mention, 8 liters of engine weighs in at 1,500 lbs, giving the truck a hefty curb weight. Since the 4.5L engine already exists in the Toyota lineup, we expect that if and when Toyota decides to move into the diesel market, that will be their first offering. Beyond that, Toyota obviously has a lot to learn about the diesel industry in the United States.