Reply With QuoteHey Feral,
how good are those Minkotas, ya recon they will get me to the banks and back
Garry
Cleanest is of course Minn Kota, but you left them of the list!
Hey Feral,
how good are those Minkotas, ya recon they will get me to the banks and back
Garry
Garry
Retired Honda Master Tech
Originally Posted by Feral
Depends on how you charged the batteries for it
Hey Feral,
how good are those Minkotas, ya recon they will get me to the banks and back
Garry
If ya had enough of em!
The other issue is of course ethanol blended fuels, the rather nasty emission that come from burning ethanol are not tested for or regulated currently, as the concern has always been hydrocarbons, but ethanol burining produces copious quantites of ketanes and organic acids, both nasties! (It also destroys mineral based engine oil, meaning more regular oil changes)
I see Evinrude in their latest ad campaign claim they are the cleanest engine on the markey.
Big call??? Fact??? Smart Marketing based on the fact most ordinary folk wouldnt have a clue???
Obviously they would most likely have data to back up the claim.
According to Evinrude, the least pollution emitting outboard (to carb 3 star ratings) is a 4st EFI motor.
And as a side tidbit, found whilst cruising around previous posted links...
Can you tell which ducky was swimming with a conventional 2st outboard motor? #
http://www.mass.gov/czm/boatenginescoop.htm
20 - 30% of unburnt fuel/oil straight out the exhaust? $2 - $3 for every $10 worth of petrol spent, wasted, straight into the environment?? .... staggering!
Maybe the sooner conventional 2 sts are banned altogether the better? At least the bigger, more fuel/oil guzzling (read environmental polluting) ones anyway. #
Cheers - Paul
phewy
I have never seen Evirude say that - can you verify the facts and point it ouit to us?
No, they didn't say it. That would be bad advertising. And that is not in Evinrudes/BRP style. But they did make public a graph that whilst states the e-tecs are lower than 4st and 2st carby engines in total HC's and NOx emissions, clearly depicts an efi 4st motor has even less again.
Cheers - Paul
interesting
where did you see that?
Gary...see pm.
Cheers - Paul
In response to some very valid comments:
The brands are irrelevant. I did the same numbers for a Suzuki 150hp and it comes out at 5% extra emissions because it has a large 8 litre oil pan.
The real issue is that used oil after 100 hours adds only 3 to 5% to the emissions when you actually do the calculations.
And I will only accept that 3% to 5% is only valid when someone is such a vandal that they dump the used in the ocean or are dumb enough to just put it in the wheelie bin.
The numbers from 2004 tell us that 80% of all used oil is recycled and its getting better. So maybe 20% doesn’t get recycled properly but I don’t believe any is actually dumped in the ocean.
I also had a comment from someone who did not believe that an outboard would put out 160kg of emission over 100 hours.
I know it sounds a lot. The first time I saw the number I didn’t believe it either.
But look at what goes in. at 17 litres per hour for 100 hours that’s 1,700 litres or about 1360kg plus an unknown kg of oxygen. Fuel does not disappear – it mixes with air (oxygen) in a chemical reaction we call “burning” (not trying to be sarcastic - just pointing out things well know) and forms new compounds including carbon dioxide, carbon monoxide and the other emissions.
When you measure the kg of inputs the kg of pollution outputs does not seem so unrealistic does it?
One more : Minn Kota s aren’t zero emission. The electricity comes from a power station where they burn coal. So the emissions are just mover to another location - they are not zero.
Fair enough - I hadn’t thought of that.
Hi Gary, just a question, if the electricity used to recharge a Minn Kota is included in emissions output, why isn't the fuel production included in output for petrol OBs. What sort of emissions come from oil refineries, or are they relatively clean?
I guess that's a road we don't need to go down. #
4 strokes have more moving parts than 2 strokes.
We could also extend the true emission comparison figures to include the emissions generated in the extra mining and manufacturing to produce the numerous cams & valves for a 4 stroke as opposed to a new generation 2 stroke.
A 4 stroke would have to be around 5% to 10% more in upfront emissions generated
Also, How many trees have been chopped down to make brochures and magazines for selling 4 strokes to the masses ? How much emissions are generated from a logging operation ? How much emmissions are generated in producing the electricity used in a mammoth printing plant to print these ? How does all that printed matter get shipped around the country ? How does the consumer get to the newsagent of post office ? How much longer does he leave the light on in the dunny while reading all this stuff ? It's quite a conundrum
They learly say it in their new ad campaign on television. I am not mistaken, have heard it twice now while watching the ad.
I am curious what the true emissions comparision would be between a Tohatsu and a Honda 30 HP 4 Stroke..
I am curious why Nugget chose the Honda Carbi over the Tohastu EFI... Unless of course your talking about a larger 4 stroke than a 30 which case tohatsu cannot compete.
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