MAG 1 5W-40 7.5k miles; VW 2.0 TDI 48k miles

[whizbyu]

Iron and silicon are high.
The oil analysis at 29,300 was from Motul with a 507.00 rating, 5W-30. Viscosity with either oil is below average. No idea where all this iron and silicon is coming from. I've been using the same air filter.

 

[edyvw]

Iron is actually low for VW. All VW have higher iron.
SIlicone? Chek your air filter.
MAG1? Shear down too much. Use Motul and do not mix any additives.

 

[whizbyu]

SUS viscosity for Mag 1 is 64.1 vs 62.0 for Motul.

 

[KCJeep]

That's a good UOA except for the silicon. I wonder if there is any in the additive? Flash point is insanely good as is TBN.

 

[Donald]

Forget the additives. The silicon and icon seem to be high. I would look at air intake,

Possibly get a particle count of this used oil to determine if the silicon is dirt or something in a sealer.

 

[edyvw]

SUS viscosity for Mag 1 is 64.1 vs 62.0 for Motul.

Yeah but Motul is 5W30 originally and MAG1 5W40. There is big drop in KV100 for MAG1. If Motul is X-Clean+ KV100 starts at 11.6.

 

[Donald]

Why not a Rotella diesel rated oil?

 

[whizbyu]

Why not a Rotella diesel rated oil?

Once I use up my stash of Mag 1's. I'll be doing 5000 mile OCI until I use them up, then I have a stash of Delvac Extremes and one gallon of Delvac ESP 5W40.
Rotella will be my default oil after all that. Offroad use only.

 

[racin4ds]

Deleted- I can't read...

 

[whizbyu]

I ran across an article in Blackstone's website about silicon levels and how certain plastic turkey basters can affect the level. I am guilty of using clear medical grade irrigation tubing to obtain my sample. This tubing is clear and soft and used to send saline for performing endoscopic surgery, and I obtain my oil samples right after shutting off the engine while oil temperature is likely above 180F. After I get the oil sample the tubing definitely feels softer due to the high temperatures and I use a 2-3 ounce plastic syringe with a soft rubber plunger to create the suction.