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Pulled air filter off and inspected downstream piping, everything was spotless, no signs of dust.

Stock system, and I will pull it apart and let you guys know what I find.

I just changed as summer towing season was upon us and want fresh oil. I have never opened up my air filter since the it has a filter minder and shows that it is good. However if it has a some failed areas it will never pull enough restriction to show that it is plugged. Any suggestions as to...

I changed the oil after this final analysis. Do you think I left this oil in too long? I also got a TBN 9.15 and a TAN of 5.5 Sample date [May 24/09][March 3/ 09][Oct 30/08][May 15, 08] Amsoil AME 15W40 Truck has [67710km][63681 km][57560][45916] Oil Service [21794km][17765...

Oh and I got the TBN and TAN done as well: TBN 9.15 (mg KOH/g) TAN 5.5

Here is the next analysis and I changed my oil. What do you guys think? The smilely faces are supposed to be zeroes... Sample date [May 24/09][March 3/ 09][Oct 30/08][May 15, 08] Amsoil AME 15W40 Truck has [67710km][63681 km][57560][45916] Oil Service [21794km][17765 km][11644km][12992 km]...

Gee I just my post above. the Smilies are supposed to me zeros.

Thanks for all the posts everyone. As the discussion continues Thought I would enter in my analyses for the previous two UOA's as well. Values will be separated by [ ] Originally Posted By: BorchtWarrior Well guys this is my second post, although I have browsed the site for over a year. I am...

Thanks for the advice guys. My after I installed my bypass filter I changed oil and ran it to the same interval as prior to the bypass filter, about 12,000 to 13,000 km. I did this to see if there was an improvement with the bypass setup. I believe there was some improvement but it is hard...

It's my own personal vehicle. Fluid Life Corp out of Edmonton, AB did the testing. It is just their basic test no TBN or TAN were done.

So when should I worry about the viscosity? So you would wait another 10,000 km before testing?

Oh, I forgot, thanks guys.

No site to host image so I will type out the info.

The results above are the second analysis on this particular oil fill. I have run amsoil for over 2 years and 30,000 km with only 2 oil changes. The first oil change was done at 13,000 km and it was analysed. I installed a bypass filter and have run over 17000km so far. The only thing...

Well guys this is my second post, although I have browsed the site for over a year. I am looking for some opinions on my UOA. March 3/ 09 sample Amsoil AME 15W40 Truck has 63681 km Oil has 17765 km on it Physical tests Oil was not changed Water - none Glycol % - none Visc 40 degrees Celsius...

Could anybody tell me how I should attach my UOA to a post