Trying to foam oil

[RDY4WAR]

The ( what ) susceptible? More, or less?

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I never tested oil for foaming properties at different temperatures. That said, at higher temperatures, the oil thins considerably, and that should allow air bubbles within the oil to migrate upward and also break the top surface film much easier. Therefore, hot oil should allow air bubbles to escape the top surface quicker. And and not retaining bubbles as long as colder oil.

More susceptible.

 

[Japanese]

You can see most of the beakers are pretty evenly aerated, and it's important to keep in mind that the time since frothing goes up by a minute with every step to the right. By the last photo, the Rotella had been sitting for four minutes. The Supertech is noticeably less aerated, again due to the wimpy frother not liking 15w oil.

Great!
Every approach is scientific if there is one or more constants. In this case the constants are temp., stirring time, rest time.
You can repeat the test at 104°F and 212°F in glass jars. Then it will be even more scientific. The test at 104°F could be done in the same plastic cups.

People running those oils in motorcycles and OPE should take notes!

Next installment to follow.

Great! Cannot wait.

 

[Japanese]

Someone is bound to say: “But oil is at 200 degrees in an operating engine”.

Oh…I just did

Yep, and your engine needs at least 5-10 min. to reach that temp. or longer—depending on ambient temp.
During that time the bubbles have a party.

 

[OM617YOTA]

Great! Cannot wait.

Sorry, I just meant there would be more to this particular experiment than that one post. I don't have any plans to do further testing.

A 100c test would be relatively easy but I'm not buying glass beakers. These cheapo Amazon beakers don't list a temperature rating, but if I get bored one day I might heat one up and see if it'll handle exposure to motor oil at boiling temps for long enough to repeat the test at 100c.

 

[SShooterZ]

I was giving you a complement.

I'm not sure "not even close" can be construed as a compliment, but my apologies if it indeed was.

 

[wwillson]

I'm not sure "not even close" can be construed as a compliment, but my apologies if it indeed was.

Yeah, I should have been more clear. I meant that your post was much better than PF's videos.

 

[crashz]

Sorry, I just meant there would be more to this particular experiment than that one post. I don't have any plans to do further testing.

A 100c test would be relatively easy but I'm not buying glass beakers. These cheapo Amazon beakers don't list a temperature rating, but if I get bored one day I might heat one up and see if it'll handle exposure to motor oil at boiling temps for long enough to repeat the test at 100c.

The beakers may not melt entirely at 100C but they may get soft. Add in the drill powered do-dad and it might get messy in the garage. I can't wait to see the 1 minute interval photos!

 

[melk]

Does the Average Joe understand the scientific method?

WE’RE GONNA TEST THAT!

 

[OM617YOTA]

The beakers may not melt entirely at 100C but they may get soft. Add in the drill powered do-dad and it might get messy in the garage. I can't wait to see the 1 minute interval photos!

Suspect at 100c the 15w40 will be fine with the milk frother.

Might try the plastic beakers just full of water and see how soft they get at 100c. Limit the mess if things get ridiculous. Thinking in a water bath double boiler type setup.

 

[Japanese]

Suspect at 100c the 15W-40 will be fine with the milk frother.

Is 15W-40 the only conventional oil out of all?
Why didn't you get Rotella T6 15W-40 or another full synth oil to make all of the oils synthetic?

 

[OM617YOTA]

Is 15W-40 the only conventional oil out of all?
Why didn't you get Rotella T6 15W-40 or another full synth oil to make all of the oils synthetic?

Yes the 15w40 is the only conventional tested. Only conventional I own for that matter. Not buying any new oils for this test, only using what I have on hand.