Oils ain't oils

[ticky]

Oil classification seems to be another of the many areas that fall outside of my area of expertise.

It also seems the Nulon oil I have been using is no longer on their web site. It was a 5W-30 (black-yellow label) Low ash

So I would be interested to hear what people think of these specs, bearing in mind my NT is an 09 with a passive DPF Its a 5W-40. https://www.nulon.com.au/images/file...PB-SYN5W40.pdf

It seems ok to me except the Sulphated Ash is 1.2% where I think the old 5W-30 I was using was about .5%

Steve

[spot01]

Oil classification seems to be another of the many areas that fall outside of my area of expertise.

It also seems the Nulon oil I have been using is no longer on their web site. It was a 5W-30 (black-yellow label) Low ash

So I would be interested to hear what people think of these specs, bearing in mind my NT is an 09 with a passive DPF Its a 5W-40. https://www.nulon.com.au/images/file...PB-SYN5W40.pdf

It seems ok to me except the Sulphated Ash is 1.2% where I think the old 5W-30 I was using was about .5%

Steve

Is that the correct link? The pdf link info says not for DPF cars - it recommends a different product.

[nj swb]

Oil classification seems to be another of the many areas that fall outside of my area of expertise.

It also seems the Nulon oil I have been using is no longer on their web site. It was a 5W-30 (black-yellow label) Low ash

So I would be interested to hear what people think of these specs, bearing in mind my NT is an 09 with a passive DPF Its a 5W-40. https://www.nulon.com.au/images/file...PB-SYN5W40.pdf

It seems ok to me except the Sulphated Ash is 1.2% where I think the old 5W-30 I was using was about .5%

Steve

Hi Steve,

I have the same DPF.

Pajeros came with two different types - the NS had a "closed" DPF, in which exhaust gas must pass through the filter element, which catches the particles. Over time, the filter blocks with the soot, and regeneration turns it to ash (which remains in the filter). As I understand it, "Low Ash" oil is required to reduce the amount of residual ash.

We have an "open" DPF, which is constructed and acts more like a catalyst - it doesn't capture the particulates, but (through something akin to magic ) continues combustion, reducing the mass of the particulates (rather than the number of them). The open DPF doesn't "clog", doesn't "regenerate", and doesn't require special oil (other than, perhaps, not using some lighter weights of oil, as mentioned above - that's new to me).

I bought the Nulon 10W-40 full synthetic.

[ticky]

Hi Steve,

I have the same DPF.

Pajeros came with two different types - the NS had a "closed" DPF, in which exhaust gas must pass through the filter element, which catches the particles. Over time, the filter blocks with the soot, and regeneration turns it to ash (which remains in the filter). As I understand it, "Low Ash" oil is required to reduce the amount of residual ash.

We have an "open" DPF, which is constructed and acts more like a catalyst - it doesn't capture the particulates, but (through something akin to magic ) continues combustion, reducing the mass of the particulates (rather than the number of them). The open DPF doesn't "clog", doesn't "regenerate", and doesn't require special oil (other than, perhaps, not using some lighter weights of oil, as mentioned above - that's new to me).

I bought the Nulon 10W-40 full synthetic.

Thanks Scott.

I have been using this one but it dosent seem to be on their web page anymore.


Steve

[green troll]

Well they still sell it cause I saw it again today