Used Oil Analysis Reports - 2nd Generation Tacoma

Did you get another analysis after that one? Did it come down?

 

Another high aluminum here, too, although I went past the 10K miles mark. Note that the title on the link below is in error - I did not use 0W-20, it was 5W-30.

https://www.bobistheoilguy.com/foru...35/Amsoil_Signature_0W-20,_2015_T#Post4647235

 

I haven't, I think I'm just going to do it as an end of year thing because I do ~20k a year and don't want to pay for that many.

 

I think a few of my contributors were:
1. Lots of idle time
2. Mostly short trips
3. 10 months on the oil

Since I don't drive a ton of miles, I think what I'll do is change it again in April, then get on a 6 month schedule regardless of miles. Changing it April/October will give me clean oil for winter when most of my idle time occurs, and a clean change after winter. If I go that route, I'll send in my April sample just to see what a short OCI tells me.

 

Sweet! 12,500 interval next!

 

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Mobil 1 Extended Performance 5W-30.

And they are correct, the truck had a few very short trips in chilly weather right before the oil change - likely the soil of trace fuel contamination.

 

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Received my oil analysis results from Blackstone on the 1 year, 7500mile oil, amsoil SS 5w-30. Results were not good.

 

This is a very unusual result for Amsoil SS.

Do you change the oil yourself? If not, is it possible this oil was not changed when you last thought it was? In other words, if a shop changed it, is it possible they did not?

I have never seen TBN this low after only 7500 miles with Amsoil. Either there are very unusual operating conditions, or the oil was not previously changed like you thought it was.

Even if there was an air leak, that would not account for the exceptionally low TBN.

 

I changed it all myself. I work about 2.5 miles away so my truck is subjected to lots of short trips. That paired with winter driving is the main reason I started sending oil in for testing.

Granted, I changed it while it was cold, probably about 50° but the oil was suuuuuuper thick. Took a good 30+ minutes to drain it from the fumoto valve. There is a chance that I pulled the sample from the oil kind of early in the draining process as well.

 

OK - so it is certain that this oil really went only slightly above 7500 miles. Still - I wonder if something else is wrong. Even accounting for short tripping, TBN is still unusually low, and the thickened viscosity indicates possible oxidation.

I think I agree with Blackstone, I would shorten the interval, or at least take a sample earlier - perhaps at half the time, like at 3750 miles and 6 months, and compare those results. It could simply be the oil won't hold up for an entire year under your conditions, and you should change it earlier.

 

Maybe try Pennzoil Platinum. I run mine for extended periods and intervals with good results.

 

I have schaeffer's 9000 in it with a Toyota filter in this go around. Planning on doing 6 months so that I get fresh oil in after winter.

 

Here's a series of 3 oil samples from my '07 4Runner, 1GRFE engine. First sample was Amsoil Signature Series 0W-30 with LubeGard Biotech moly additive, second sample was straight Pennzoil Platinum High Mileage 5W-30, third sample was the first oil change after replacing all the valvetrain timing components due to elongated timing chain (original owner wasn't big on oil changes). I haven't pulled a sample since July, it's had 2 oil changes since then so hopefully the break-in metals are flushed out by now.

 

here is my last report. I use Mobil 1 5W/30 synthetic each oil change. After my first report of driving 7,152 they said to try 9,100 miles next time. Second report I drove 7,740 they said to try 10,000 next time. Third report I drove 9,365 they said to try 11,500 next time. I think I will start doing 10k oil changes and if I go over before I have time so be it.

 

Is this the standard analysis, the $28 one?
So they ship you a kit, you fill with your used oil, and put it in a prepaid envelope?

 

The kit comes with a small plastic shipping jar, prepaid shipping label attached. I tape the screw-top lid on as a precaution. Inside, there's a small plastic specimen container, plastic Ziploc bag, absorbent mat, and form you fill out.

 

I believe there's even a youtube video instructional. Believe it or not...