Filling tanks when using additives

[Davros Advanced Member Find all posts View Profile Close Davros]

Hi all.
I hope this doesn't turn out to be a really stupid question, but...... over many years I have always used Pro-Mar or Diesel Power with my fuel. Now I have a Prado with the dual tanks I was wondering how the system works. I did a search but didn't turn up anything enlightening. So here's the question......

If I put the required amount of additive down the spout, when filling from empty, will the additive mix with all of the fuel for both tanks?
Am I better off throwing 1/2 additive down the shoot, and half again when I have filled to 90 litres?

Anyway, I am filling up from empty today, to hopefully beat the Christmas price spike, so I will do the 1/2 &1/2 thing for now.

Thanks for any responses.

Steve

[Pedro Advanced Member Find all posts View Profile Close Pedro]

Re: Filling tanks when using additives

Check out this thread
http://www.pradopoint.com/viewtopic.php?f=12&t=3553

I was advised strongly against adding addities by a respected diesel mechanic.

Pedro

[Bushbasher Out of control poster! Find all posts View Profile Close Bushbasher]

Re: Filling tanks when using additives

It obviously fills the main tank first for 90 litres and then is diverted to the sub tank by some form of overflow setup.

The next question is if you add your "additive" at the start will it get diluted as the fuel goes into the main tank and then into the sub tank?

If you put 2 cans in at the start will it dilute sufficently to get an even distribution? I think not.

Personally, I'm with the rest on this issue of putting additives into the fuel - I never have and never will.

[johna Member Find all posts View Profile Close johna]

Re: Filling tanks when using additives

The injectors see only a small amount of fuel delivered and the majority returns to fuel tanks and is used to cool the fuel pump.
Won't take long to mix through the feul load.

[karrathaprado2 Senior Member Find all posts View Profile Close karrathaprado2]

Re: Filling tanks when using additives

I agree it would not take long to mix see below of the parts area I came up with. It shows it going into the main and then overflowing into the sub. Not sure of the logic of how it flows as one empties out.

[Davros Advanced Member Find all posts View Profile Close Davros]

Re: Filling tanks when using additives

Thanks guys. That was just the information I was after.

For the first two responses.... I have read that other thread. FWIW, The deisesl sold in Australia is still below the quality sold in Europe (average sulpher 3-5 ppm), which is where the Prado fuel sytem was designed for. Added to the sulpher issue, is the suspended H20 which eventually dmages injectors. the additives that I use deal with this issue effectively.
Add to that, the increased fuel economy, that almost totally negates the cost of the additive, and the fact that my last vehicle went for about 400,000kms without fault, and you may start to see why I use the additives. Nothing like personal experience to win out for me.

Thanks again guys.

Steve.

[OldGreyGuy Senior Member Find all posts View Profile Close OldGreyGuy]

Re: Filling tanks when using additives

The deisesl sold in Australia is still below the quality sold in Europe (average sulpher 3-5 ppm), which is where the Prado fuel sytem was designed for. Added to the sulpher issue, is the suspended H20 which eventually dmages injectors. the additives that I use deal with this issue effectively.
Add to that, the increased fuel economy, that almost totally negates the cost of the additive, and the fact that my last vehicle went for about 400,000kms without fault, and you may start to see why I use the additives. Nothing like personal experience to win out for me.

Davros, I really know nothing about how additives, so please bear with me, my questions are not loaded.

How does the additive deal with suspended H20 in the fuel?

What state are you in (can't tell as your location does not display) as this may effect distribution, water levels, etc?

Cheers OldGreyGuy

[Davros Advanced Member Find all posts View Profile Close Davros]

Re: Filling tanks when using additives

Hi OldGreyGuy,

I am in Blue Mountains NSW.
I believe that the additive that I use traps the H20 in emulsion, thus negating its detrimental effect on injectors. I don't know how that protects injectors, but that is what I have been told by the manufacturers.

As mentioned before, my last rig was faultless for over 400,000kms. I pulled the injectors at 360,000kms and they were deemed as "OK" by my friend who is a diesel mechanic. I had them refurbed anyway, as it only cost $230.00, but my point is: injectors on that model were supposed to be replaced at 120,000 intervals. Mine did 3 times that, and were still OK. I bought the vehicle new, serviced it every 5000kms, and used the additive.
I intend to keep using the additive on the D-4D. It costs me about 2 cents per litre, which is canceled out by better fuel economy.

Anyway.... horses for courses as they say.

[Bushbasher Out of control poster! Find all posts View Profile Close Bushbasher]

Re: Filling tanks when using additives

I agree it would not take long to mix see below of the parts area I came up with. It shows it going into the main and then overflowing into the sub. Not sure of the logic of how it flows as one empties out.

Ahhhh, so that's where that bit goes!

[D4D Addicted PP Member Find all posts View Profile Close D4D]

Re: Filling tanks when using additives

Hope you never need a warranty claim on the fuel system/injectors as Toyota can and will check a fuel sample. You'll be denied warranty.

[Davros Advanced Member Find all posts View Profile Close Davros]

Re: Filling tanks when using additives

Hope you never need a warranty claim on the fuel system/injectors as Toyota can and will check a fuel sample. You'll be denied warranty.

Rubbish.

[D4D Addicted PP Member Find all posts View Profile Close D4D]

Re: Filling tanks when using additives

Hope you never need a warranty claim on the fuel system/injectors as Toyota can and will check a fuel sample. You'll be denied warranty.

Rubbish.

Your comment is based on what facts? Mine is based on information provided by Toyota.

[johna Member Find all posts View Profile Close johna]

Re: Filling tanks when using additives

Hope you never need a warranty claim on the fuel system/injectors as Toyota can and will check a fuel sample. You'll be denied warranty.

Rubbish.

Your comment is based on what facts? Mine is based on information provided by Toyota.

Don't wish to get into an argument, but don't Toyota sell (and add to your tank without asking first) "Toyota fuel additive ?

And, as far as adding a few mils of 2stroke oil to the fuel and damaging the injectors, would appreciate an informed or sensible answer.

[D4D Addicted PP Member Find all posts View Profile Close D4D]

Re: Filling tanks when using additives

Don't wish to get into an argument, but don't Toyota sell (and add to your tank without asking first) "Toyota fuel additive ?

Not my dealer and the brochure that comes with your new D4D states no additives

[johna Member Find all posts View Profile Close johna]

Re: Filling tanks when using additives

Don't wish to get into an argument, but don't Toyota sell (and add to your tank without asking first) "Toyota fuel additive ?

Not my dealer and the brochure that comes with your new D4D states no additives

Well good for you and the brochure, but every Toyota dealer I have been to for a "service" right around Australia during 2 circuits, has wanted to add "TOYOTA" fuel additive/injector cleaner, and even done so without asking first.
Ask your dealer if they do the book service every 40,000klms and check the "with feeler gauges" the valve clearance. Bet they say we just listen to them.
Another Australia wide Toyota service. Love the vehicle but not in love with the servicing attitudes.