Oil analysis report 2004 88K miles

Wow... looks great. I might extend my drain interval to 10k too. 5k is a waste for Mobil 1. Did u do the TBN test?

 

Thanks for posting this. Could you fill me in on what year your prius is and which Mobil 1 oil you used for each of the 3 analyses on your Blackstone report? I know the Prius calls for 5W30, but some people use 0W30, 5W20, or 0W20, also there is the EP variety in the 5W30. Thanks, nice report!

 

Thanks Scott. I guess I should have looked at your signature for the year of your Prius. Any guess as to what the difference between the first two analyses was as far as driving contitions etc, and do you remember the TBN for these first two analyses (I think the first is in the database already, but either you didn't post the second or I missed it.) Also how many months was on the oil for each of these and was there any makeup oil or filter change during the oci? Was anything added to the oil, did you change the oil or just sample at around 8K? With your permission I will add these to the oil analysis spreadsheet. Thanks

Dennis

 

Thanks Scott. The reason I asked about driving conditions was the change in Fe over your analyses. They are all excellent but some are better than others and I was wondering if one had more short trips or something. I would think with the kind of miles you rack up (40K per year) that you could extend your intervals to 15 or maybe 20K, especially with the EP and if you used a premium filter like Mobil 1 or the EAO from amsoil, also you could change the filter only at 7K or 10K. I think you might find that most of the wear metals accumulate over the early part of the oci, although in my case I got very low wear over the first 2400 miles and greater wear over the next 2500, but this may have simply been lab error. Keep your eye out for my UOAs as I plan to run my oil out to 15K and I don't put so many miles on my car (about 20K per year) which would be harder on the oil.

Dennis