Dumb Spec Question

[dragboat]

Is Commercial Specification ACEA E5 a tough one or a so so spec to meet ?

 

[SteveD2]

--quote--
Heavy duty diesel Sequences

E2..General purpose oil for naturally aspirated and turbocharged heavy-duty diesel engines, medium to heavy duty cycles and mostly normal oil drain intervals.

E3..This lubricant category provides effective control with respect to piston cleanliness, bore polishing, wear, soot handling and lubricant stability. It is therefore recommended for diesel engines meeting Euro 1 and Euro 2 emission
requirements running under severe conditions. It is also suitable for extended oil drain intervals according to the manufacturer’s recommendations.

E4..Stable, stay-in-grade oil providing further control of piston cleanliness, wear, soot handling and lubricant stability compared to E3. It is recommended for highly rated diesel engines meeting Euro 1, Euro 2 and Euro 3 emission requirements and running under very severe conditions, e.g. significantly extended oil drain intervals according to the manufacturers recommendations.

E5..Stable, stay-in-grade oil providing effective control with respect to piston cleanliness and bore polishing. It further provides improved wear and turbocharger deposit control, soot handling and lubricant stability compared to E3. It is recommended for highly rated diesel engines meeting Euro 1, Euro 2 and Euro 3 emission requirements and running under severe conditions, e.g. extended oil drain intervals according to the manufacturers recommendations.
--end quote--
http://www.acea.be/ACEA/20020618PublicationsOilSequences.pdf
See pages 4 & 9

Ken

 

[Pops]

I now recently changed and use a motor oil that meets that specification in my Truck . It is the Phillips HD 15/40 oil and is pretty inexpensive but not a cheap oil IMO. It also meets other specifications I know little about but this is a gas motor I have .

http://seweb1.phillips66.com/LUBE/P...5913E7C9149BB32B862564F3004FF635?OpenDocument

 

[TooSlick]

Dragboat,

It is difficult to meet both API, CI-4 and ACEA E5 with the same formulation. Typically the CI-4 oils have sulphated ash in the 1.4%-1.5% range, while some of the HD European engines do the best with sulphated ash in the 1.8%-2.2%. This is mainly a balance in trying to minimize high temp piston/ring deposits in these two different engine designs.

The ACEA E5 does include a lab test to measure oxidation resistance using a pressure "bomb", which I think is an excellent bench test.

Many of the CI-4 and ACEA E5 tests are the same, such as some of the Cummins and Mack tests for heavily sooted oils.