antifreeze and oil sample

[sledhead]

I just got the results back from the lab and all looks great but can some one explain what the #s mean ? it is all jiberish to me ?


thanks a lot dave 

[luvrbus]

Go to chapter 13 in your manual and compare the numbers is the best way

[MagnoliaBus]

Oil analysis is complicated, you kneed to know the arrangement of a particular engine.
For example a 8v92 with high copper reading may not indicate worn bearing, it could be copper winding particle from the gear drive 50dn alternator.
The most important thing is to look for increase between analysis (the first analysis mean nothing).

[sledhead]

I watched a few utubs on how to understand the samples ? helped a bit
here are the print outs
yes this is the first of more to come and at $29 postage inc why not ?

thanks   dave

[gg04]

You have to have a complete analysis of the oil used..companies constantly update thier data base as oil production and additive packages change..your contint looks good, have never used cat, so where is TAN numbers? Maybe I'm just missing them the context cat uses..

[luvrbus]

The TBN and the TAN are the same units on a Cat oil sample so they don't bother with the acid number unless you request one Cat is the only sampling test I have ever used 

[sledhead]

thanks for the replies

I looked in all the binders that came with the coach but no luck finding the manual but I did find a real nice cat truck engine parts and service
" DIRECTORY " so now I can look up every dealer in USA and CANADA

all reports came back in the green and no work needed at this time

so that is good and I do use synthetic  5 w 40 oil and have changed the oil twice now .

it is good to know that the antifreeze is ELC and from what I could find from the invoice that I found with the coach ( in french ) that said 88 litres ( 23 gallons ) of prestone hd antifreeze .
so I looked it up and this is what it is in " yellow "
PRESTONE  Command Heavy Duty Nitrite Free Extended Life Antifreeze/Coolant - NF OAT
so I ordered 2 gallons of the same to keep on board if I ever need to top it up

how often do you guys send in a sample ? ever year ?

thanks for the help

dave

[lostagain]

I have done oil samples for the bus. Not any more. Too much stress worrying about the details. I monitor the oil the old fashioned way. I drain it in a clean pan, so I could see if anything is in it. I look for antifreeze in it. I feel it between fingers, some times I cut open the filters, etc. Oil sample analysis would be valuable in a fleet, but I don't really see any benefit for me. Hell, I've been running all kinds of vehicles for 50 years without fancy oil sampling, and it has served me well.

JC

[sledhead]

I have never sent in a sample b 4 but I had to to try and find out what the antifreeze was or I would have had to dump it ? and at the same time why not send in the oil as well to tell me the condition of the engine . so I saved a but load of $$$ on the antifreeze end so the samples really did not cost anything . well sort of ?

dave