Stanadyne

[daviduphoff]

Has anyone ever used a diesel additive called Stanadyne? The shop that is rebuilding the fuel injection pump on my 21 recommends it. I know have seen discussion over FPPF in the past. I've been adding a couple tablespoons of ATF with every 10 gallons or so and used to do the same in my diesel pickup (before some A$$@#%& stole it). The shop said ATF was fine but also add the Stanadyne. I know the ATF does nothing for the water but I've been draining the water out of the pickup for years and do the same with the boat. Unfortunately its not as easy with the boat. With the pickup the drain was conveniently located above the exhaust manifold.

 

[Gin]

David, at one point, I was trying to research the various additives and came across some unusually favorable info on Stanadyne. I thought it might have even been here on the Tugnuts, but in searching through the forum, nothing comes up (you probably looked too). I can't now tell you where I read about it, but at the time, I thought the information was from credible sources. In fact, I remember being impressed at the knowledge and experience base of whoever was recommending it. So, long story short, it is what I have been using. I got it mail order (TheDieselStore.com) just because the price was quite a bit better. In the 13 months we have had the boat, we've had no problems with the diesel. Whether good diesel at the source gets the credit, or the Stantadyne, or some combination of the two, I can't say.

Gini

 

[daviduphoff]

Gini-

I too looked online and found it at TheDieselStore.com. I then called my local, locally owned, locally based, parts house here in Vancouver. It was $8.95 for the 16 oz bottle. They said it was very popular. This is also the same place that found a starter for my Yanmar for $79.95. The local Yanmar dealer wanted something like $250 for an aftermarket one and $350 for a Yanmar one. I ended up having mine rebuilt locally and it came with a 3 year warranty for $99.00. I digress.

What I do not recommend, based on my experience, is Quicksilver Marine Diesel Additive. My 21 came with quite a bit of it and I have been using it. Well, as you may or may not know my fuel injection pump went out at South Pender Island and left me stranded. It is being rebuilt at Northland Diesel Service in Bellingham. (very slowly as all the parts come from Yanmar and believe it or not they are not all stocked in the US, what a nightmare) The mechanic said that we should all be using some sort of additive along with a little ATF in our diesel. The low sulfer diesel made today is very hard on things such as the fuel injection pump that is literally lubricated by the diesel according to the mechanic.

 

[SGIDAVE]

I've been adding a couple tablespoons of ATF with every 10 gallons or so and used to do the same in my diesel pickup (before some A$$@#%& stole it). The shop said ATF was fine but also add the Stanadyne.

Hello David,

When you say "ATF" do you mean Automatic Transmission Fluid? If so, is any type better than another? Is the purpose of the ATF to increase lubricity of the fuel to help preserve the fuel pump?

How many hours where on your Yanmar when the Fuel Pump failed? How many times had the engine been run out of fuel (i.e., "out of fuel" situation)?

Thanks,

/david

 

[Salish Rover]

It is actually recommended by Lugger, a major supplier of marine engines and gen sets.

 

[daviduphoff]

Hello David,

When you say "ATF" do you mean Automatic Transmission Fluid? If so, is any type better than another? Is the purpose of the ATF to increase lubricity of the fuel to help preserve the fuel pump?

How many hours where on your Yanmar when the Fuel Pump failed? How many times had the engine been run out of fuel (i.e., "out of fuel" situation)?

Thanks,
/david

Yes, ATF = Automatic Transmission Fluid. I use what I have and since we have 20 plus Fords at our house it's Type F. It's to increase lubricity of the fuel.

My engine has about 850 hours. As for how may times has it been run out of fuel...I'm the second owner...but in my defense I was 100 yards from the fuel dock and one my way there the one time I ran out.

It is actually recommended by Lugger, a major supplier of marine engines and gen sets.

If it's good enough for Lugger I'm sure it's good enough for Yanmar.

 

[Levitation]

I don't see many mechanics that are university trained engineers, so I tend to take their advice with a knowing nod of the head in their direction - and go make my own decisions.
We don't add foo-foo juice to diesel here at the farm. We are running older diesel engines on low sulfur diesel. Works just fine. The thing that kills injection pumps, besides old age, is water. Even a trace is enough to gall the plungers.

 

[The Masons]

Stanadyne has been acquired by a company name CLARCOR - the filtration and additives sectors are now part of this corporation. Here's the link to their website: http://www.clarcorems.com/