Oil Analysis results - green OK check mark!

[IdahoMtnSpyder]

Three weeks ago we had quite a discussion about leaving oil in the engine over winter storage. Naturally, of course, there were a few varying opinions. https://www.spyderlovers.com/forums/...94#post1428194

I just now received the results for the sample I sent in for analysis. The last time I changed oil was a year ago. I had it analyzed at that time. Analysis results for both are included in the report below. I only rode 4200 miles in the past year and have not changed the oil after sitting all winter.

In short, the Base Number, which is a measure of how well the oil will neutralize acids, is still high at 7.2. From what I read oil needs to changed when the BN drops below 3. Viscosity is the same as last year's oil analysis. Water is the same as last year when the previous oil had run 10,719 miles and also sat over the winter. There are some minor changes in the other chemicals. The diagnosis is:

DIAGNOSIS
All wear rates normal. Abrasive and other contaminant
levels are acceptable. Viscosity within specified
operating range. Action: Resample next recommended
service interval to further monitor.

Note they say resample at the next service interval. They don't say change the oil.

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[Mikey]

I know I am going to hell for this, but Amsoil is my go to oil for most of my toys in the barn, and in my cars and trucks! And that test just gives me more fuel for the fire!! Good to see! Thank you for this post!!!

[BLUEKNIGHT911]

Three weeks ago we had quite a discussion about leaving oil in the engine over winter storage. Naturally, of course, there were a few varying opinions. https://www.spyderlovers.com/forums/...94#post1428194

I just now received the results for the sample I sent in for analysis. The last time I changed oil was a year ago. I had it analyzed at that time. Analysis results for both are included in the report below. I only rode 4200 miles in the past year and have not changed the oil after sitting all winter.

In short, the Base Number, which is a measure of how well the oil will neutralize acids, is still high at 7.2. From what I read oil needs to changed when the BN drops below 3. Viscosity is the same as last year's oil analysis. Water is the same as last year when the previous oil had run 10,719 miles and also sat over the winter. There are some minor changes in the other chemicals. The diagnosis is:



Note they say resample at the next service interval. They don't say change the oil.

Oil Analysis 3-2019 Page 1-a.jpg

Oil Analysis 3-2019 Page 2.jpg

Thanks for this info …. I guess the Double or triple ADDITIVE levels don't matter …….. Mike

[IdahoMtnSpyder]

I thought I had already added this to this thread, but I guess not!

Here are the lab results of my oil when I changed it this past March. Oil went 6950 miles (oil report has a typo) and 22 months. Amsoil metric 10W40. You'll notice the viscosity is 13.5 compared to last year's test of 13.0. Good question why it went up instead of down. The base number, which is what matters most, went down as expected from 7.2 to 5.8. There was still plenty of life left in this oil. Oil is generally considered good as long as the TBN is above 3.

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[Lew L]

Thanks for the good info----Glad I changed to Amsoil.

[bikerbillone]

Outstanding report considering 22 months. Oil threads are interesting to me whether meaningful or not; to others, just popcorn time.

[carbonation]

The only thing I see about the OP post number 1, is that the oil at 4200 miles is just a hair into the 40 weight range. It's holding up well, but watch for continued cST drop as miles add on. Looking at both columns, those oils do not appear to be the same. There are marked differences between add packs even considering the one oils use for 10k. If those are both AmSoil metric, I'd be asking if they initiated a change in formula. Iron tracks with mileage, I expect to see more on the 10k sample.
And for those that still wring their hands and cry "moly damages clutches and makes them slip", note that AmSoil has a snoot full of moly in it.
Oils will thin initially due to shear of the VI additive. Good oils will stabilize for a while, then begin to thicken as soot and oxidation take over. Continued exposure to high temperatures accelerates the process. Then it's time for a change.
Nothing wrong at all with that report, or AmSoil metric. It's one of the finer choices available.
The thing about reports is watching trends. It can be an early warning for engine problems, but more likely just to be used to see when to change the oil and roll on.

[troop]

Nice to see someone didn't swap out perfectly good oil after the "recommended" 12 month interval

[IdahoMtnSpyder]

It's not straightforwardly identified on the reports but the 2018 report is for the previous oil fill changed in 2018. The 2019 & 2020 reports are for the oil I drained in March.