Oil Analysis - Diesel Engine Research

[TimberCutterDartmoor]

Hi, this is a very interesting thread for me, which is not much of a surprise. I am very interested in how the different products stack up. I would love to get our 15w/40 in to compare but as testing has started I guess its too late. Also, we get hammered on price by motor factors who make quite extravagant claims on specs for the price of the product, is it also too late to get either a semi 10w/40 or 5w/30 if I can get you a sample.

Thanks

Jon

 

Hoping to finish this project this year (2015); may well need a couple more but first I need basic tech data on your 15w40; 40 & 100 cSt, VI, HTHS, Flash, Pour, ZDDP etc etc; will see if it fills a gap! Basestock group is needed too; we're not bothering with group 1 stuff, kinda obviously.

 

An important point; we will be reporting only on 15W40 CI oils to begin with; this has been a massive project and ironing out anomalies has been hard work with re-tests, mid-run filter changes and API catagories maening data is out of date very quickly in respect of emission tiers / additive packages.

 

Loads of people do their own independant testing; it is 99.9% biased and I'd be lying to say I wasn't tempted to ignore a poor result from an oil you expected better from; hence the paramount importance of an overall score as opposed to one cold virgin wear test.

[TimberCutterDartmoor]

Waiting on parts from Mexico so started the end of the beginning of this report today; my head seriously hurts!

[phedders]

I'd love to see pics and description of your test rigs and methodology.

 

Cheers!

[TimberCutterDartmoor]

I'd love to see pics and description of your test rigs and methodology.

 

Cheers!

 

You think!

[shavey]

You will get there bud stick at it your the man when it comes too. Oil

Cheers

[SteveA]

I'd love to see pics and description of your test rigs and methodology.

 

Cheers!

 

He pours a bit out onto a metal workbench, adds a dusting of sand, beats it for half an hour with a peening hammer, sieves it through some old stockings and then does a final taste test.

 

Quite simple really!

cheers, steve

[TimberCutterDartmoor]

You will get there bud stick at it your the man when it comes too. Oil

Cheers

 

Impartiality is hard work mate! The thing I've learnt this time, 20 years later, is that what is "good" for one user is less so for another. Not the application, but the user. Not so much lab analysis on this one, more test beds, uoa and duty cycle analysis. Engines were larger displacement than the range I wanted to include. I wanted air cooled hatz single cylinder, high speed idi and then the bigger stuff. Due to Plymouth Uni asset changes, longer term tests had to move into base load generators which knackers mixed duty cycle observations. Part load was doable but not mixed rpm, temperature extremes etc. Lines of Jenbachers in individual containers vs Cummins QSV's in a shared room. These are the variables that skew "lab conditions". Still we wanted real world life-cycle analysis despite the challenges.