This is a good reason why I run Amsoil AME in my truck. 

 

As you can see the oil had over 10K miles on it. I ended up running it a little longer than I have been the last few years because I did a trip in May/June to Arizona and didn't figure the additional highway miles would hurt, and they didn't. 

 

10,583 miles, 308 hours, 733.8 gallons, and just under 13 months. 

 

Of those miles 2679 were towing which is a decent percentage when you take out the 3544 miles I did in 6 weeks to/from Arizona, which is just under 40% towing. 

 

The oil looks like it had quite a bit of life left in it but I'm good changing it. 

 

Not to bad for making 410/850 to the ground and using the truck pretty hard. 

 

*Don't mind the two cautions on last years change as they were a carryover from the Delo 400 LE on the change before. 

How much oil is required for the sample and how do you collect it without  making a huge mess?  Also, during this period did you change the oil filter?

The oil sample only takes a couple ounces.

 

I collect mine at the bypass filter return cap so it's very clean. On my wifes 4Runner I installed a petcock to same oil with.

 

I do not change the filters. The Donaldson ELF7349 is a 25K mile rated filter and the bypass is a 60K mile rated filter. I change them both with the oil annually.

Here we are again another year down the road... Notice that the TBN after 11.5 months and 6400 miles is as high as many CJ oils start out at. 

 

 

Looks good John! I'm afraid of what they'd say if I sent a sample in  

I said the same exact thing!

why is iron so high? every amsoil sample I've seen Iron is always high. look at the calcium though!!!! wow lots of antacids.

I think the iron is pretty low. Iron is the main component in this engine so it stands to reason it's in the sample. It's not even to a severity 1, and quite a ways from it IIRC. Wear metals are just that, wear metals. 

 

IIRC Severity 1 starts around 100 ppm and Severity 2 starts around 150 ppm. 26 ppm is nothing to even give a second look. 

 

Calcium is a good thing and why I like Amsoil as a detergent oil. 

Edited July 10, 20177 yr by AH64ID

On 7/12/2016 at 0:24 PM, AH64ID said:

I do not change the filters. The Donaldson ELF7349 is a 25K mile rated filter and the bypass is a 60K mile rated filter. I change them both with the oil annually.

I'm confused, do you or not change filters once a year when changing oil. I only change my service filter every time, and bypass I flush out by running engine and holding return line ( like yours oil fill cap ) over a small bucket and run maybe 1.5 2 qts through it, by that time oil is clean. Not planning on changing it till it quits flowing or rusts away.

On 8/1/2017 at 8:32 AM, Dieselfuture said:

I'm confused, do you or not change filters once a year when changing oil. I only change my service filter every time, and bypass I flush out by running engine and holding return line ( like yours oil fill cap ) over a small bucket and run maybe 1.5 2 qts through it, by that time oil is clean. Not planning on changing it till it quits flowing or rusts away.

 

I change the oil and both filters every year. 

 

The bypass can probably run longer than one change but I want a fresh one each year. 

 

On my wife's 4Runner I change the bypass every other year. 

Edited August 7, 20177 yr by AH64ID