Engine oil

[E55BOF]

It seems very surprising that a 5W40 would give worse oil consumption than a 5W30; over what mileage did you find this?

Which Mobil Super 3000 did you use? There seem to be several different specifications of 5W40 under that designation.

(Oh, and Gazwould, I'm not sure why you seem to think those images look like my bollocks , but they're not quite that angular...)

 

[cylaptor]

It seems very surprising that a 5W40 would give worse oil consumption than a 5W30; over what mileage did you find this?

Which Mobil Super 3000 did you use? There seem to be several different specifications of 5W40 under that designation.

(Oh, and Gazwould, I'm not sure why you seem to think those images look like my bollocks , but they're not quite that angular...)

not worse OIL counsumption, but worse fuel consumption !!

 

[Gazwould]

What is the graph of the MB 229.52 specs. ? where can I found it ? 229.52 have a higher TBN.

Generally speaking, the higher an oil’s total base number (TBN), the better its ability to neutralize contaminants such as combustion byproducts and acidic materials. TBN is a measure of alkaline additives in the oil. Higher TBN oils neutralize a greater amount of acidic materials, which results in improved protection against corrosive reactions and longer oil life.

TBN levels are targeted for the intended application. For example, gasoline motor oils typically display lower TBN numbers, while diesel oils must manage the high contaminant-loading from soot and sulfur and typically have a higher TBN.

Can we say the MB 229.52 is better than 229.51 ?

My suggestion is dual fuel spec , over kill for the 3 cylinder stuff but is also used in the RS monsters inc 10 cylinder .

TBN is an afterthought , what takes president is oil film strength .

 

[markjay]

Choose the Daddy of all manufacturer specs.


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Who is behind these publications? An oil manufacturer? A Standards organisation? Etc.

 

[E55BOF]

My suggestion is dual fuel spec , over kill for the 3 cylinder stuff but is also used in the RS monsters inc 10 cylinder .

TBN is an afterthought , what takes president is oil film strength .

Maybe it Trumps everything else....

(Sorry, couldn't resist. Damn predictive texting. 'S all bollocks anyway, innit...)

 

[190]

Who is behind these publications? An oil manufacturer? A Standards organisation? Etc.

This is the usual source. You will see there are some caveats about making comparisons but non the less it's a very useful tool for showing how oil specifications have developed.

The VW specs are certainly demanding and you might ask why more so than others. One reason is the Pump Duse diesel engine which used the camshaft to operate the diesel injectors as well as opening the valves. Without the very best oil they just wore out due to the narrow and therefore very high contact pressures on the cam lobes. If oil can cope with a PD engine it can pretty much cope with anything.

Relative Performance Comparison Tool for Passenger Car Specifications - Engine Oil Additives - The Lubrizol Corporation