So, if 0w30 pours like milk.....

surfstar · Oct 26, 2006

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This gets my vote as the all-time most dufus thread on BITOG.

Worse than the few GIII 0w30 diatribes we had?

G-MAN · Oct 26, 2006

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Pennzoil PP 10W30 SM.

All the others were as described.

That doesn't surprise me since this was PP made from EOP.

toocrazy2yoo · Oct 26, 2006

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Worse than the few GIII 0w30 diatribes we had?

Hey, Surf, I tried to rescue A HALF AND HALF VS. MILK, VS. CREAM DISCUSSION with a bit of unscientific science. It's the best MY puny imagination could come up with.

See what YOU can do with it!

427Z06 · Oct 26, 2006

You must be on the crack pipe again, toocrazy2yoo. I have it on good authority from member acewiza that he use to start his car regularly in -20°F temps on nothing more than 20w50 mineral oil.

Seriously, I'm happy to see someone motivated enough to do some real world testing to dispel some myths.

By the way, at room temperature, the clear filtered honey you buy at the grocery store is roughly about 7,000 cP, which is about the limit of what a 5W-XX oil should be at -22°F.

toocrazy2yoo · Oct 27, 2006

There you go again, comparing the oil to food..

I don't say a car won't start with honey at 20 below, but then, only the Wizzer would do it with 20W50.

So? What myth did THAT experiment dispel? And what would the cP rating be of 0W20 Mobil1, or even 5W20? Would you expect thinner? Or is 15 or 20 below so cold that nothing will stand up to it?

PS, I don't DO crack, I do

427Z06 · Oct 27, 2006

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So? What myth did THAT experiment dispel?

That a 0w rating automatically implies it will have a lower viscosity than an oil with a 5w or 10w rating at any temp above the rating temperature.

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And what would the cP rating be of 0W20 Mobil1, or even 5W20? Would you expect thinner? Or is 15 or 20 below so cold that nothing will stand up to it?

In the past, they would of done as well or better than the PP. But unless you test the current formulations, anything I'd say would be just a guess. Love to see you test a bottle of 20w50 dino in your freezer. Both of mine only go to 0°F

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PS, I don't DO crack, I do

Beer is health food.

JavaMan · Oct 27, 2006

Let's reverse this conversation. I don't think any petro or synthetic oil (used for mechanical lubrication) will compare to dairy based products for taste or nutrition when preparing food products. I certainly think it would be extremely dangerous to try to prepare your food with any mechanical lubricant.

Nebraskan · Oct 27, 2006

I would add to this thread, but it seems to be too "homogonized" already...

mcrn · Oct 27, 2006

Toocrazy did they all have the same amount in each bottle?

mcrn · Oct 27, 2006

Oh and thanks for saving this thread from disaster and turning it into something worth all of our time to read it!

shanneba · Oct 27, 2006

How about some numbers to compare. I didn't see the specs for Mobil 1 0w-20 on their web site. I used the viscosity calculator for the data: Viscosity and Viscosity Index (VI) Calculation

Code:

Temp Castrol Mobil 1 Mobil 1 Mobil 1 Mobil 1 Mobil 1

F Syntec

0w-30 0w-40 0w-30 5w-30 10w-30 5w-20

Vi 167 187 169 169 147 163

100C 12.2 14.3 11 11.3 10 8.8

40C 72 80 63.1 64.8 62 48.3

cSt

-40 28357.7 19743.0 22092.0 23154.0 39117.0 17893.0

-30 14234.7 10603.0 11202.0 11734.0 18230.0 8925.0

-20 7591.9 5998.0 6032.0 6314.0 9119.0 4745.0

-10 4278.2 3558.0 3430.0 3588.0 4863.0 2672.0

0 2527.6 2199.0 2044.0 2136.0 2739.0 1581.0

10 1560.7 1412.0 1273.0 1329.0 1623.0 979.0

Ron AKA · Oct 27, 2006

I would suggest something is wrong with the test. The viscosity of the oil at 0F or -15C or so will have nothing to do with being a synthetic or non synthetic. Before I went to bed last night I put a 0w20 PP, 0w30 Petrocan, and 0w30 Tech 2000 in the freezer. Just checked them, and they are all sloshy and I could easily use any of them to change oil right now. No pour problem as one would expect. My suspicion is that the slosh test is quite sensitive to how full the bottle is. Would likely be better to turn each one upside down and time how long it takes to empty.

Ron AKA · Oct 27, 2006

Your numbers look much more like I would expect. Further I think if you ran them with a good conventional 5w20 you would find at about the -15C temp of a freezer it would be very similar to the 5w20 synthetic, and lower than any XW30 oil no matter what it is made of.

Nebraskan · Oct 27, 2006

So, are all you saying that the German Castrol "gold" 0W-30 won't be as pumpable, or flowable at 0F as some other oils then?

427Z06 · Oct 27, 2006

bruce381 · Oct 27, 2006

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Since the W spec is just a maximum viscosity at a specific temp, can't a 0w also meet the 10w spec and be correcly labled as a 10w if the manufacturer chooses?

YES they sometimes do that.

bruce

toocrazy2yoo · Oct 27, 2006

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I would suggest something is wrong with the test. The viscosity of the oil at 0F or -15C or so will have nothing to do with being a synthetic or non synthetic. Before I went to bed last night I put a 0w20 PP, 0w30 Petrocan, and 0w30 Tech 2000 in the freezer. Just checked them, and they are all sloshy and I could easily use any of them to change oil right now. No pour problem as one would expect. My suspicion is that the slosh test is quite sensitive to how full the bottle is. Would likely be better to turn each one upside down and time how long it takes to empty

Agree with all, Ron.. I figured the pressure would drop in the bottles, so I cracked the lid on each to let air in, giving them plenty of room to slosh. And, for all I know, this chest freezer maybe be a little colder than 15 below, but not much.. Also, none of the oils I put in were those you list. But for slosh purposes, only the PP 10W30 was a good slosher, the rest would move in the bottle, but not slosh, indicating a really high surface tension.

Something wrong with the test? Yep! *I* did it! It's highly UNscientific. It just tests a concept, and I'm no precision instrument..

427Z06 · Oct 28, 2006

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Code:

Temp Castrol Mobil 1 Mobil 1 Mobil 1 Mobil 1 Mobil 1

F Syntec

0w-30 0w-40 0w-30 5w-30 10w-30 5w-20

Vi 167 187 169 169 147 163

100C 12.2 14.3 11 11.3 10 8.8

40C 72 80 63.1 64.8 62 48.3

cSt

-40 28357.7 19743.0 22092.0 23154.0 39117.0 17893.0

-30 14234.7 10603.0 11202.0 11734.0 18230.0 8925.0

-20 7591.9 5998.0 6032.0 6314.0 9119.0 4745.0

-10 4278.2 3558.0 3430.0 3588.0 4863.0 2672.0

0 2527.6 2199.0 2044.0 2136.0 2739.0 1581.0

10 1560.7 1412.0 1273.0 1329.0 1623.0 979.0

You need to be careful with these Viscosity Calculators. Below -20°C things can get highly nonlinear, even with synthetics. And for dinos, 0°C might be a better cut off point.

Further, I don't know how you used that calculator, but I get totally different values than you do when plugging in your 40°C and 100°C values. WAY DIFFERENT.

mcrn · Oct 28, 2006

Were all the containers at the same level?

So, if 0w30 pours like milk.....

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