Re: 1971 GMC Bus - Toro-Flow DH478
I think those buses were built '65-'66. BTW, our TDH3501 had it's original D478 replaced with a 'green' ToroFlow II in the early 70's. We have all the service records for it. Interesting reading!
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Re: 1971 GMC Bus - Toro-Flow DH478
Around 72 GMC dropped the Toroflow name and renamed the DH478 as a "Turbium" 7.8 Diesel engine.
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Re: 1971 GMC Bus - Toro-Flow DH478
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Re: 1971 GMC Bus - Toro-Flow DH478
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The lighter weight of the turbine, and the compact size were attractive to truck companies, but most weight savings and extra room would be needed to carry extra fuel. The big gas and diesel trucks I've driven got around 3-4 miles per gallon, turbines maybe half that distance per gallon or less. That big of carbon footprint from hydrocarbons to move freight sounds environmentally reckless. A turbo-diesel now days releases a tiny fraction of the pollution and goes 2 to 4 times farther on a gallon of fuel! Was talking to a guy the other day. His 2015 C-1500 Chevy 4-door pickup with V-4-6-8 engine gets 24-27 mpg of the cheapest gas he can find, even E-85 with slightly lower mpg. |
Re: 1971 GMC Bus - Toro-Flow DH478
Could I get a copy of the DT service bulletins?
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