[loadingpicker87]

In the beginning, the idea that 4-bladed props were slower than those with 3 blades was true to a certain extent, but that is because many of those 4-blades were not designed with speed in mind. Instead, the few designs that were available were intended to cure handling issues such as ventilation, cornering blowout, motor elevation requirements, and hole-shot issues. Without many options in blade design, and very few of them truly intended to be particularly fast, the 4-blade got branded as slow, while their other performance benefits were largely dismissed.

[BitLex]

So, why might a 4-blade generally be slower than its 3-blade counterpart? To be honest, many 3-blade/4-blade speed comparisons are simply not fair. That’s because the respective propellers in question are simply different styles, designed with different purposes in mind—different diameters, rakes, cupping, and blade shapes. here

[jumolock1976]

If however, for comparison purposes, we take two propellers, identical in design (blade shape, diameter, rake, cup, etc.) that are appropriate for a given application, and simply add a propeller blade, we get a truer representation of just where the difference lies. here

[partyp]

There are a great deal of factors that affect the amount of fuel consumption and therefore the figures listed below will not necessarily be what you will obtain. Factors such as weight, hull shape, hull condition, water conditions, etc. may drastically affect the consumption figures shown below.

[isabelbonaguidi]

We've put together the chart below to help you determine what type of fuel consumption you can expect from your Tohatsu outboard. Please remember though, all figures are approximate.

[Cab1945]

The following chart shows the approximate fuel consumption of each model:

[MrBurns]

[links]

[leonas7n3417]

[DarkMatter]

[yeahsam51]

There are way too many variables to factor in i.e Hull type, hull weight, engine setup, engine condition. could vary from 1klm/l to .5 klm/l .

[saullysaul78]

I snipped this from the article here

[osjak]

To be honest it could vary significantly to what anyone can come up with.

[telyni]

I have two of them and agree they are a great motor and will tollerate old fuel, new fuel, metho in the fuel to sop up any condensation and they don't have injectors or a computor to bugger up when they are 10 yrs old (simimilar) Oh I'm going to pay for this!