VOA - Motul 300v Competition 5w-50

[rocketthewhippet]

The top (second line) Visc@40 and Visc@100) is what is reported on the SDS.

The tested Visc@40/Visc@100 is the last two rows of data.

 

[Jetronic]

that's well within expected variations. The variation in actual viscosity vs "typical" pds viscosity is why I don't give any attention to 10% lower or higher viscosity in UOA.

105 silicon though? that is unheard of. i'd resample very shortly as it looks like dirt is getting into the crankcase.

 

[rocketthewhippet]

that's well within expected variations. The variation in actual viscosity vs "typical" pds viscosity is why I don't give any attention to 10% lower or higher viscosity in UOA.

105 silicon though? that is unheard of. i'd resample very shortly as it looks like dirt is getting into the crankcase.

Yea I did notice that and asked them to check the results.

This was a virgin sample but after the mech has opened the bottle and serviced the car. So perhaps some crap got in?

 

[edyvw]

Yea I did notice that and asked them to check the results.

This was a virgin sample but after the mech has opened the bottle and serviced the car. So perhaps some crap got in?

Way to high. I have UOA of 300V 5W40 here somewhere, nowhere close to that. All within normal spec.

 

[rocketthewhippet]

I had the oil re-tested. The previous sample was from a can that was used by the mechanic. He might have left the lid off for an unknown length of time.

This sample is fresh.

@himemsys - perhaps worthy of the database?

 

[himemsys]

perhaps worthy of the database?

Absolutely. It's now in there! Thanks for tagging me.