My Blackstone-Labs Oil Analysis

[kbuskill]

It means trace amounts. He refers to it in the comments, too. Mine was <0.5, and my insoluble was 0.2.

Thanks for the info... I knew he mentioned it but I was having trouble figuring out what TR stood for.

I also saw your insolubles % was close to mine but I have twice the mileage on the oil so I figured that was good for mine to be as low as it was.

 

[HiHoeSilver]

Thanks for the info... I knew he mentioned it but I was having trouble figuring out what TR stood for.

I also saw your insolubles % was close to mine but I have twice the mileage on the oil so I figured that was good for mine to be as low as it was.

I agree. I think. Mine went down on my longer interval. 0.3 @4000, 0.2 @ 5000 while my viscosities and Flashpoint went up.

 

[swathdiver]

Here's the latest report from a sample taken in January. Mileage on plain old Mobil 1 was less than last time but oil viscosities were lower. They like the K&N oil filter too; used on both samples.

 

[Fless]

Here's the first from my '04 L59 Flex. Happy with the baseline. Am now running the Rotella Gas Truck oil and the longer NAPA Gold filter, so we'll see what it looks like come next change. I don't drive her a lot so it might be a year....

 

[HiHoeSilver]

View attachment 239938

Here's the first from my '04 L59 Flex. Happy with the baseline. Am now running the Rotella Gas Truck oil and the longer NAPA Gold filter, so we'll see what it looks like come next change. I don't drive her a lot so it might be a year....

You say "now" running Rotella. What was the sample?

 

[Fless]

Not sure, an unnamed semi-synthetic that the shop used when I had it in for some other work. It was due so I had them do the change then.

 

[donjetman]

How often do you run E85 ? E85 doesn't have much of a shelf life and its ******* oil.

If you don't run E85 very often I believe you could extend your change interval out to at least 7500 miles on the Rotella Gas Truck oil.

 

[Fless]

How often do you run E85 ? E85 doesn't have much of a shelf life and its ******* oil.

If you don't run E85 very often I believe you could extend your change interval out to at least 7500 miles on the Rotella Gas Truck oil.

If you're asking me, not often. It's not convenient where I live, although it's available in the area. And when I do get it, it seems more like E50 or so, not worth going out of my way. As little as I drive the Hoe, I'm going to start changing it once a year instead of by miles. That'll be around 4K miles unless I get a wild hair and take a long trip in it. That last interval was 5K miles and took me 18 months, including a couple of camping (read: towing a 20-ft camper) trips.

 

[swathdiver]

And when I do get it, it seems more like E50 or so, not worth going out of my way.

Seeing an alcohol content in the 50s is not unusual when first switching off gasoline. If you kept using it, the next time you'd see 60s or low 70s and then full strength by the 3rd or 4th tank which would also likely be in the 70s and not past 83% for pump "gas".