If it's about air quality, then DFI would have to be exempted.

Personally, I don't think the aggregate number of 2 stroke outboards is
sufficiant to make a significant contribution to air pollution. While I'd
agree they are a lot dirtier than comparable 4 cycles, there just aren't
enough of them running to impact anything real.

-W


"Billgran" wrote in message
om...

Basically the different government bodies say that outboard exhaust
pollution is about air quality. The oil issue is would be about water
quality, and there are no reported problems with outboard oils since they
dissipate fairly quickly.

"Clams Canino" wrote in message
news:SIDEb.429634$ao4.1362098@attbi_s51...
If it's about air quality, then DFI would have to be exempted.

Personally, I don't think the aggregate number of 2 stroke outboards is
sufficiant to make a significant contribution to air pollution. While I'd
agree they are a lot dirtier than comparable 4 cycles, there just aren't
enough of them running to impact anything real.

-W

Most people are under the impression that a 4-stroke is cleaner, but a DFI,
such as a late model Evinrude, has fewer total emissions than a late model
EFI 4-stroke. The great thing about DFI is that its emission output stays
fairly steady throughout the life of the motor. On the other hand, a
4-stroke gets dirtier (increased hydrocarbon emissions) as it wears (about
350-400 hours) and oil starts getting by the rings and the valve guides. It
doesn't even have to "smoke" to drastically increase its emissions.

Bill Grannis
service manager

On Sat, 20 Dec 2003 00:16:02 GMT, "Billgran"
wrote:


"Clams Canino" wrote in message
news:SIDEb.429634$ao4.1362098@attbi_s51...
If it's about air quality, then DFI would have to be exempted.

Personally, I don't think the aggregate number of 2 stroke outboards is
sufficiant to make a significant contribution to air pollution. While I'd
agree they are a lot dirtier than comparable 4 cycles, there just aren't
enough of them running to impact anything real.

-W

Most people are under the impression that a 4-stroke is cleaner, but a DFI,
such as a late model Evinrude, has fewer total emissions than a late model
EFI 4-stroke. The great thing about DFI is that its emission output stays
fairly steady throughout the life of the motor.

Could that be because the 4-stroke lasts so much longer? Sorry,
couldn't resist.

Steve

Most people are under the impression that a 4-stroke is cleaner, but a DFI,
such as a late model Evinrude, has fewer total emissions than a late model
EFI 4-stroke. The great thing about DFI is that its emission output stays
fairly steady throughout the life of the motor.

Could that be because the 4-stroke lasts so much longer? Sorry,
couldn't resist.

Steve


When it comes to marine engines, I'll bet there's a whole lot more old 2
strokes than 4 strokes.

I couldn't resist either.

Barry

On 20 Dec 2003 19:39:11 GMT, ospam (F330 GT) wrote:

Most people are under the impression that a 4-stroke is cleaner, but a DFI,
such as a late model Evinrude, has fewer total emissions than a late model
EFI 4-stroke. The great thing about DFI is that its emission output stays
fairly steady throughout the life of the motor.

Could that be because the 4-stroke lasts so much longer? Sorry,
couldn't resist.

Steve


When it comes to marine engines, I'll bet there's a whole lot more old 2
strokes than 4 strokes.

I couldn't resist either.

I'll be there isn't. Remember, we're talking about DFI 2 strokes. But
since you mentioned all marine engines, there could be a lot more old 4
strokes there as well. Just not outboards.

Steve

(Steven Shelikoff) wrote in message ...
On 20 Dec 2003 19:39:11 GMT, ospam (F330 GT) wrote:

Most people are under the impression that a 4-stroke is cleaner, but a DFI,
such as a late model Evinrude, has fewer total emissions than a late model
EFI 4-stroke. The great thing about DFI is that its emission output stays
fairly steady throughout the life of the motor.

Could that be because the 4-stroke lasts so much longer? Sorry,
couldn't resist.

Steve


When it comes to marine engines, I'll bet there's a whole lot more old 2
strokes than 4 strokes.

I couldn't resist either.

I'll be there isn't. Remember, we're talking about DFI 2 strokes. But
since you mentioned all marine engines, there could be a lot more old 4
strokes there as well. Just not outboards.

Steve


Hmm, are you including two stroke diesels in that data?

On 23 Dec 2003 10:26:16 -0800, (basskisser) wrote:

(Steven Shelikoff) wrote in message ...
On 20 Dec 2003 19:39:11 GMT, ospam (F330 GT) wrote:

Most people are under the impression that a 4-stroke is cleaner, but a DFI,
such as a late model Evinrude, has fewer total emissions than a late model
EFI 4-stroke. The great thing about DFI is that its emission output stays
fairly steady throughout the life of the motor.

Could that be because the 4-stroke lasts so much longer? Sorry,
couldn't resist.


When it comes to marine engines, I'll bet there's a whole lot more old 2
strokes than 4 strokes.

I couldn't resist either.

I'll be there isn't. Remember, we're talking about DFI 2 strokes. But
since you mentioned all marine engines, there could be a lot more old 4
strokes there as well. Just not outboards.

Hmm, are you including two stroke diesels in that data?

No. If you want to, go ahead. But only old marine ones.

Steve