Low ash oil options for Golf Mk6 1.6 TDI

[ghost404]

Hi all, here with a question about DPF-friendly oils.
I've recently come into ownership of a 2012 Mk6 Golf with the 1.6L CAYC engine. At work we stock nothing but Penrite, and I've been comparing specs across their product range in the hopes of finding something a bit cheaper than their Enviro 5W30 ( https://penriteoil.com.au/products/enviro-5w-30-full-syn ), which is the only one that meets VW 507 00 spec.

It looks like Enviro C4 ( https://penriteoil.com.au/products/enviro-c4-5w-30-full-syn ) is just about identical, but has considerably lower sulphated ash content (0.48% vs 0.7%), which would be ideal for keeping the DPF healthy, while also being quite a bit cheaper than Enviro 5W30. I plan on sticking to 7,500 km oil change intervals with this vehicle, and I suspect the reason the Enviro 5W30 is more expensive is to handle VW's ludicrous 30,000 km service schedule.

Most of my driving is ~20 minute commuting (about half that on an expressway) with an occasional long trip to regen the DPF. The weather here varies between 0C to 45C, and the car has 230k kms on the clock but doesn't seem to be burning a noticeable amount of oil. So, is there any reason not to use C4 in this vehicle? I'm also open to suggestion for other brands, but so far I haven't found one that has such a low level of ash content, at least amongst those that list their specs publicly.

 

[JavierH19]

Low ash and now ultra low ash oils like chevron delo adf 600 which I think is available in Australia are great for preserving the aftertreatment equipment if you're burning oil. But the cat and dpf and sadly now gpf as well won't be harmed by a high saps oil if there's very little to no consumption.

 

[ghost404]

I can't find the Delo oils through my usual suppliers or on amazon, and they don't list Australia on their site. Looks like they only do 10W30 or 15W40 in the ADF 600 range, anyway. Even with it not burning much oil, I'd still prefer to minimize those deposits where possible to keep the VGT and EGR relatively clean as well as the DPF.

 

[fantastic]

C4 is going to give you low SAPS & sounds like you've done some homework.

 

[JavierH19]

Yes as fantastic said acea c4 is good as it's limited to .5%. I'd still use higher saps but still low saps categorized c3 rated oils in it. acea c2 oils are low viscosity and enviro c2 0w30 is 2.9 hths which is light.

 

[rollins.]

Enviro+ 5w-30 (C3) is actually officially 504-507 VW approved (not just "meets and exceeds manufacturer's demands" and all that blah) . Another "+" to it.

Yes,as JavierH19 pointed out, it depends on the oil consumption - it may happen that for whatever reason the oil consumption with a certain otherwise aftertreatment "friendlier" or lo,better base oil is greater than with a higher SAPS one. But one wouldn't know until one actually tries.

Anyway ,my vote is for the approved one, the Enviro+ C3 .