Hello THere

anybody knows what is the recommended ISO cleanliness code for Cat Engine (Gas/Diesel)?

Any Caterpillar Rep willing to share this info?
Appreciate your input.

One recommendation/guideline on the bottom of the 2nd page here:
http://www.gepower.com/prod_serv/products/oc/en/orbit/downloads/1199white.pdf

Diesel Engines - 17/16/13
Journal Bearings - 17/15/12
Rolling Bearings 16/14/12

Thanks pete!

Electripete,

ISO Code can be obtained through an oil analysis instrument called particle counterm however, most particle counter are laser type which means that if the caterpillar engine oil turns black then it is not possible for the laser to read the contaminants.

Most of the vendors on particle count I have talked to have not recommended their particle instrument to be used on engine oil due to its sensitivity and does not provide warranty in case the instrument malfunction, while a few have a way of reading engine oil by diluting the oil which in a way can penetrate the laser enough to read the contaminants.

Do you know of any particle counter that can ISO code on black engine oil ?

My Warm Regards,

Jim Fitch wrote an article on this exact subject: "The Agony of Diesel Engine Oil Particle Counts"

http://www.practicingoilanalysis.com/article_detail.asp?articleid=712

"Pore" type automatic counters apparently won't be affected by dark oil.

For optical counters, he suggests some pretreating methods to get around their limitations: particle resuspension method, diluation method, solvent cut-back method..