Diesel-Mix Gas and Kenworth T604 tests
Friday, April 17th, 2009
Success with Series 60 Detroit Diesel Engine
Diesel-Mix Gas has successfully converted a Kenworth T604 with a Series 60 Detroit engine to LPG. This is despite claims made from within the Diesel-Gas industry, and from Detroit engineers within Australia that conversion on this engine was impossible without altering the program within the Engine Control Module of later version of the engine.

Our success with this installation opens up the floodgates for all of our customers with trucks powered by an engine from the Series 60 family of Detroit Diesel engines. This is in addition to the great success we have had with our LPG system on Cummins and CAT family truck engines, as well as Volvos. The DieselMix-Gas LPG system produces significant fuel savings on trucks with all of these engine types.
Since installation of our LPG system (late in 2008) the owner has been seeing fuel savings averaging over 15%. This is outlined in table 1 below which shows the outcome of just three of the truck’s trips since installation of the DieselMix-Gas LPG system. These calculated savings are printed here with the truck owner’s permission.
| Period | Distance Travelled (km) | Diesel Used (l) | LPG Used (l) | Absolute Cost Saving | Cost Saving (%) | Cost Saving (c/km) | CO2 Reduction (%) |
|---|---|---|---|---|---|---|---|
| 10 Feb | 822 | 337 | 86 | $81.31 | 15.53 | 9.9 | 10.87 |
| 24 Feb | 1508 | 610 | 174 | $152.66 | 15.90 | 10.1 | 10.75 |
| 3 Mar | 1570 | 630 | 176 | $167.14 | 16.72 | 10.6 | 11.72 |
| Overall Savings | 3900 | 1577 | 436 | $401.11 | 16.15 | 10.3 | 11.17 |
With savings like this, the owner of the truck is incredibly happy, and so are we. Now we can add Detroit Diesel engines to our repertoire of engine types that our LPG system produces great savings on. DieselMix-Gas can convert trucks which have Cummins, CAT, Detroit Diesel and Volvo engines, which opens our system up to the majority of large trucks driven on Australian roads.

