The Freezer Again...
- Thread starter toocrazy2yoo
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G man why not cut to the chase and get some dry ice and a cold thrmometer and do a PP test.
bruce
bruce
remember that "pumpability" is more the problem with cold oil not PP. even oil above the PP can have Pumpability problems to flow to top end of engine.
Rohm and Hass to show the better cold properties of there VII showed how there VII mfg 15/40 and a competitiors 15/40 both legitamate 15/40 oil the Rohm stuff pumped up to the top end some 20-30 seconds faster as I remember so even PP is not the final answer in other words if it pours it still maybe to thick to pump.
bruce
Rohm and Hass to show the better cold properties of there VII showed how there VII mfg 15/40 and a competitiors 15/40 both legitamate 15/40 oil the Rohm stuff pumped up to the top end some 20-30 seconds faster as I remember so even PP is not the final answer in other words if it pours it still maybe to thick to pump.
bruce
Maybe, BUT VII and base oil make a diference as in a long cold soak will normally make things worse as in a few days sitting cold vs a few hours. You can PP additive an oil down to a low temp like say -40F BUT is gets kinda Plastic or to my eye like a #1 grade grease and even tho it may pour slowly if may NOT pump through engine.
I would get some dry ice to use to cool a sytofoam type cooler and adjust to whatever the coldest temp in your area has been then test a whole bucbh of oils at once.
Also I like to play with the dry ice is cool to put in drinks, my kids love when I do PP at work casue I bring home a box of dry ice at end of day.
Normal frezzers cool well but that temp range is where stuff starts to happen and you will not see all the effects till you go lower hope that makes sense.
evryone should dry there oils it is a eye opener to see how they react.
bruce
I would get some dry ice to use to cool a sytofoam type cooler and adjust to whatever the coldest temp in your area has been then test a whole bucbh of oils at once.
Also I like to play with the dry ice is cool to put in drinks, my kids love when I do PP at work casue I bring home a box of dry ice at end of day.
Normal frezzers cool well but that temp range is where stuff starts to happen and you will not see all the effects till you go lower hope that makes sense.
evryone should dry there oils it is a eye opener to see how they react.
bruce
Well, this was a single grade pretty well locked up at 15 or 17 below. Now, the Pennzoil Platinum in the 5W20 showed a pour point in the 50's below zero if memory serves. Same for the M 1 0W20, and the 5W20 Havoline specs 27 below as the pour point, yet the Havoline was close to the "loosest" at 15 below, right there with the 5W20 Pennz Platinum. If the 27 below pour point for the Havoline dino is true, there is a LOT of thickening taking place between 15 below and the purported 27 below pour point, but I don't have the means to drop the temps that low here. What surprised me was the 0W20 Mobil 1, which advertises 59 below zero pour point, and it was as thick or more so even, as the 10W30 Pennz Platinum. I can tell you, the 0W20 didn't have far to go before it was too thick to pour at 15 below, I'd not like to have this stuff in the car at say, 25 below, or thirty, let alone 50 below. All theoretical of course, at least in the Mid Atlantic, but I always thought the beauty of these PAOs was the super low pour points, and here the 0W20 Mobil 1 was bested by a discontinued, garden-variety 5W20 dino (ok, ok, Havoline was much better than garden variety, but it was $1.99/quart regular price). Pre-DS Havoline may have been the best oil ever, dollar for dollar, eh? Pours and pumps freely in the cold, enormous flash points, lots of moly, I believe it turned in pretty good numbers in UOAs..
I shoulda bought it ALL!
I shoulda bought it ALL!
Is the Mobil1 0w-20 in this test SL or SM formula?
SM, SL/CF, GF-4
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