examples of fuel consumption by engine make

Examples of Diesel Engine fuel consumption

Deutz Diesel F4L1011 fuel consumption

image Deutz 1011 Spec Sheet p1 — Click to download Deutz 1011 Spec Sheet, 6 pages

You will observe in this spec sheet that the specific fuel consumption for the F4L1011 is given as 220 grams per kWh, but in actual fact it varies from about 231 to 241 grams per kWh with it's optimum consumption at 1800 rmp; i.e about 68% power.
You will also note that this engine falls within the specs already laid out for most diesel engines and is well suited to have the above table applied to it. Thus:
at continuous full power (44 kW @ 3000 rpm) it will use approx 12.8 liters per hour.

Detroit Diesel 4-71 fuel consumption

Detroit Diesel 4-71 and 6-71 Spec Sheet p1 — Detroit Diesel 4-71 and 6-71 Spec Sheet, 2 pages, click to download

The Detroit Diesel 4-71 engine shows a fuel consumption between 0.430 to 0.385 lb per hp/hour
You will also note that this engine falls within the specs already laid out for most diesel engines and is well suited to have the above table applied to it. Thus:
at continuous full power (116 kW @ 2100 rpm) it will use approx 25.0 liters per hour.

CATERPILLAR 3306 Fuel Consumption

Caterpillar 3306 genset Spec Sheet p1 — CATERPILLAR 3306 Genset Spec Sheet, 4 pages, click to download

This CAT 3306 Spec sheet shows full power (250 kw, 300 kVA) fuel consumption to be 76 liters/hour, 20 US gallons per hour. This is well above the expected consumption for Naturally Aspirated engines, never mind if we go to the turbo engine table. And is a good example of why one must not rely on the tables alone, but revert to the spec sheets whenever they are available.

What Improvement did the CAT 3306 engine get by upgrading to EPA specifications?

CAT 3306 EPA TEST

CAT 3306 EPA Fuel Consumption TEST Discussed

We'll pick result #17 because it is closer to genset specs, which shows about 110 lb/hp hour @ 340 hp.
Now while better than the spec sheet above, it still is not worthy of our turbocharged fuel consumption chart, and you must use the natural aspirated chart to predict its consumption.