GC 1705 black smoke on startup

[ray66v]

I use a "premium" off road diesel, because my local seller has put in a good additive package.

I have never noticed any difference in how clean it burns, or power.

Like the "noticeably quieter engine", some insist they get with synthetic oil, it is, what it is.

If there was any real difference in how clean premium burned, the government would mandate the use of it.

You get more smoke on start up, due to incomplete combustion. It's a diesel, they do that. It can be mitigated. There is no way to completely avoid it.

As suggested earlier, open the throttle as little as possible on start up. And, work on a way to ventilate your exhaust, or your shop.

 

[AxleHub]

I use a "premium" off road diesel, because my local seller has put in a good additive package.

I have never noticed any difference in how clean it burns, or power.

Like the "noticeably quieter engine", some insist they get with synthetic oil, it is, what it is.

If there was any real difference in how clean premium burned, the government would mandate the use of it.

You get more smoke on start up, due to incomplete combustion. It's a diesel, they do that. It can be mitigated. There is no way to completely avoid it.

As suggested earlier, open the throttle as little as possible on start up. And, work on a way to ventilate your exhaust, or your shop.

A perfect example to counter your idea that the government would require changes is the difference in gasoline between the Chicago/Milwaukee region compared to the gas sold in the other 3/4ths of the state of WI. Gasoline in that specific area has a different additive package which supposedly burns "cleaner" but not necessarily better. It has to be delivered from the refineries via pipeline and then the pipeline purged each time before normal piping begins again.

Ultra low sulphur diesel is the same 15 ppm whether its regular or premium but the additive package is different. I'm told premium diesel ignites faster so you have less unburned combustion = less smoke and easier faster starting. When you look at 5 or 10 gasoline provider brands - each offers different additive packages making each brand of their premium gasoline slightly different than their competitors and of course also different than their own regular brands as well.

Some claim adding just a cetane additive like Power Services is all it requires to produce "premium" diesel . Of course that is far too simple an answer just as adding an off the shelf gas additive and octane booster would equal premium gas.

Like with premium gasoline . . Which are not the same or equal in their benefits . . I'm sure every premium diesel isn't identical either.

You didn't find any differences in the premium diesel you tried . . possibly you'll consider trying 3 or 4 tankfuls of another source instead to get a more accurate assessment.

All I know is in my experiences . . premium diesel starts with less cranks of the starter and nothing but lowest idle setting of the accelerator. And during normal operations I get less diesel exhaust smell/exhaust than I do running regular diesel with power service additive.

I guess thats why contractors buy truckload deliveries for their equipment too in this area.

 

[ray66v]

A perfect example to counter your idea that the government would require changes is the difference in gasoline between the Chicago/Milwaukee region compared to the gas sold in the other 3/4ths of the state of WI. Gasoline in that specific area has a different additive package which supposedly burns "cleaner" but not necessarily better. It has to be delivered from the refineries via pipeline and then the pipeline purged each time before normal piping begins again.

Ultra low sulphur diesel is the same 15 ppm whether its regular or premium but the additive package is different. I'm told premium diesel ignites faster so you have less unburned combustion = less smoke and easier faster starting. When you look at 5 or 10 gasoline provider brands - each offers different additive packages making each brand of their premium gasoline slightly different than their competitors and of course also different than their own regular brands as well.

Some claim adding just a cetane additive like Power Services is all it requires to produce "premium" diesel . Of course that is far too simple an answer just as adding an off the shelf gas additive and octane booster would equal premium gas.

Like with premium gasoline . . Which are not the same or equal in their benefits . . I'm sure every premium diesel isn't identical either.

You didn't find any differences in the premium diesel you tried . . possibly you'll consider trying 3 or 4 tankfuls of another source instead to get a more accurate assessment.

All I know is in my experiences . . premium diesel starts with less cranks of the starter and nothing but lowest idle setting of the accelerator. And during normal operations I get less diesel exhaust smell/exhaust than I do running regular diesel with power service additive.

I guess thats why contractors buy truckload deliveries for their equipment too in this area.

A fortune is being spent, to reduce emissions on diesel engines due to government regulations.

The mandate forcing everyone to switch to low sulfur, is ample proof, they would require no.1 diesel if it mattered.

Some claim all kinds of things. But, if I don't see any difference, I'm going to call it that way.

Are you among those who believe premium gasoline, gives better mileage, and or more power, when used in 87 octane gas engines?

 

[AxleHub]

A fortune is being spent, to reduce emissions on diesel engines due to government regulations.

The mandate forcing everyone to switch to low sulfur, is ample proof, they would require no.1 diesel if it mattered.

Some claim all kinds of things. But, if I don't see any difference, I'm going to call it that way.

Are you among those who believe premium gasoline, gives better mileage, and or more power, when used in 87 octane gas engines?

Am I a believer that premium gasoline gives more power and better mileage than 87 octane ? Well in my pickup truck the answer is a definite YES . . if I'm using a premium non-ethanol gas because my Silverado has a compression ratio of 10 and premium octaned fuel offers a SLOWER more controlled burn than does a non-ethanol regular. This allows more complete combustion and timing which produces more power and greater energy use (better mieage).

That exact same premium used in a Silverado with a compression ratio of 9 won't produce the same benefit and a non-ethanol 87 regular will potentially be as good or better than the premium.

My Silverado is equipped as a Flex Fuel engine . . but just because it CAN use e-85 or e-15 or normal e-10 . . doesn't mean its smart or efficient to do it. And it shows in mpg and engine smoothness . . just as my wife's car does better with 87 non-ethanol than it does with 87 e-10.

 

[ray66v]

Am I a believer that premium gasoline gives more power and better mileage than 87 octane ? Well in my pickup truck the answer is a definite YES . . if I'm using a premium non-ethanol gas because my Silverado has a compression ratio of 10 and premium octaned fuel offers a SLOWER more controlled burn than does a non-ethanol regular. This allows more complete combustion and timing which produces more power and greater energy use (better mieage).

That exact same premium used in a Silverado with a compression ratio of 9 won't produce the same benefit and a non-ethanol 87 regular will potentially be as good or better than the premium.

My Silverado is equipped as a Flex Fuel engine . . but just because it CAN use e-85 or e-15 or normal e-10 . . doesn't mean its smart or efficient to do it. And it shows in mpg and engine smoothness . . just as my wife's car does better with 87 non-ethanol than it does with 87 e-10.

That's quite a convoluted answer.

It has been proven, that running higher octane fuel, in a car made for 87 octane, does not improve performance, or mileage.

However, some will insist it does.

It is, what it is. And, that is my point.

 

[AxleHub]

That's quite a convoluted answer.

It has been proven, that running higher octane fuel, in a car made for 87 octane, does not improve performance, or mileage.

However, some will insist it does.

It is, what it is. And, that is my point.

Ray, my answer wasn't convoluted . . It was detailed . . because there were multiple answers to your question and each answer was correct based on 1 of the 3 conditions:

A. Engine compression ratio of 9.6 or higher

B. Engine compression below 9.4/9.5

C. Ethanol vs non-ethanol

Its an old wives tale that premium gas is automatically better gas. In the right equipment it is a superior choice and in lower performance equipment it can almost be considered inferior as a choice.

 

[Fiziksgeek]

I just did a search for premium diesel, first things that comes up is from Cenex.Then I wondered over to the Power Services website and look at the description for their Diesel Kleen+cetane boost.

They both claim the have the same sorts of components: cetane boost, detergents, lubricity improvements, etc. I'm sure they each have their own proprietary recipe, and one might be better than the other, but they sure sound like the same thing...The only real difference is that one is added to the fuel before you buy it, and one is added after...

 

[sweettractors]

I've seen many suggest that it is normal. If so, is there any way to avoid that big blast of black smoke when you start the engine? It's just one big puff at first, but the cloud sits there and can be pretty thick.


My 1705 is kept in a garage right now. The initial blast of smoke fills the garage and I need to hold my breath. My barn is almost complete and will be the new home for the tractor. Not sure it is a good idea to start it up with horses on the other side of the barn.

Short of pushing it outside before startup, are there any tips to minimizing the problem?

I use a shop vac to pull cutting smoke off the Bridgeport Mill and Lathe. That should also work for your situation. Just attach a hose to the exhaust side of the shop vac to vent outside. Ken Sweet

 

[Jonohio]

I start my tractor in a closed garage as well, although I usually open up the single car door before I start. I only get a quick 1.5' cloud of black smoke on initial startup and it quickly dissipates. I only run highway ULSD from well used fueling stations as I fuel from a 55 gallon drum and that drum also fuels my suv at times.

My garage is a 3 car 20x35 and it's attached to the house with 2 cars in one side on tractor on the other. If yours smokes enough to require you to leave the area, it sure sounds like something isn't normal.

 

[not2old]

I give my GC2610 15 seconds of glow plug (30 in cold weather) and it starts up almost right away, quieter and with less smoke. Without the right amount of glow plug time it cranks way too long and may not start at all.