Q for those running 2 stroke in their 150

[cbm8880 Senior Member Find all posts View Profile Close cbm8880]

There,

I'm not after a discussion on what fuel additive to use, more the delivery method. Following on from Bailey's post about running 3ml/litre of 2 stroke in a pre 2012 D4D, I have been doing so, but I'm wondering if I am adding it at the right time, given the dual tank setup of the Prado.

I have been adding the entire dosage before putting the diesel in. Is this likely to lead to a high concentration in one tank? Or is the system design such that there will be enough mixing to ensure a consistent ratio throughout? Or should I be adding half prior to filling and half before the last 50 litres?

Thanks.

[stanmiko Member Find all posts View Profile Close stanmiko]

Prior to the 3mL / L suggestion, I was dosing at the rate of 200:1, thereby using 900mL of 2T per 180L of diesel. I know that once my fuel level light starts to illuminate I have about 20L of fuel remaining, so adjust the dosage accordingly.

Normally, I have been adding half at the start of the refill and then the remaining half of the 2T when I know there should be 40 L or so left to fill. Whether this makes any difference, I don't know for certain, but I think from memory the sub-tank is filled first and then the main tank. Whilst you would think that this would make a difference, I am lead to believe that there is a mixture system in place for the dual tank Prados whereby the fuel in both tanks is circulated until the main tank is emptied. Main tank is 93 L and sub-tank is 87 L from memory.

[cbm8880 Senior Member Find all posts View Profile Close cbm8880]

Thanks for the info, Stan. Are you talking about the 120 series (180l)? The 150 series only has 150l (87 and 63 respectively). Does anyone know if here is a tank mixing system in the 150 series?

I think I will employ your half and half dosage until I get a straight answer on this. I have a Scangauge which gives (within a litre or two) the fuel used since last refill, which makes the dosage easy to work out.

[stanmiko Member Find all posts View Profile Close stanmiko]

Correct.. I have the 120 series. I think the principal would be the same... the respective dosage for your main tank and sub tank according to the 3mL per L suggestion.