Is 0w-50 possible? If so who offers it?

[moribundman]

quote:

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"what are BWM M3/M5/Enzo Ferrari driver's supposed to use in severe cold?"

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They are supposed to use the wife's car, of course.

 

[carrera79]

Syn Lube has PTFE in it. I'm having a great time with the cheezy music on their website. It's great.

 

[2K2AcuraTL]

Canadian Tire had a 5W50 synth weight in late 1999, under the CT label. Havent seen for a while.
J

 

[Patman]

quote:

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Originally posted by 2K2AcuraTL:
Canadian Tire had a 5W50 synth weight in late 1999, under the CT label. Havent seen for a while.
J

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I forgot to mention that, as CT still does sell a 5w50 synthetic, now it's under their Formula 1 brand name. Their oil is made by Shell.

 

[Thomas Pyrek]

quote:

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Originally posted by Dr. T:
Guess this oil would answer my question: "what are BWM M3/M5/Enzo Ferrari driver's supposed to use in severe cold?" (ie. when a 10W isn't adequate)

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Their Honda Civic.

 

[sprintman]

Dr.T - I reckon up to 15kkms I guess. I don't really have any actual data as even though M1 5W50 is everywhere it isn't a factory fill from anybody I can think of. I'm using 5W50 Pennzoil Performax 100 in my Mazda turbo and best oil I've used in this engine so far but obsolete unfortunately.

 

[sprintman]

Penrite make a 5W60 which is close

 

[G-MAN]

quote:

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Originally posted by Gary Allan:
Well ..then (and thank you btw) that makes the existance of a 0w-60 impossible UNLESS you can truly have a fluid get heavier at a higher temp. That is, the bottom end of 5w (which 0w would be assumed to be below) is lower then the lowest 60 weight "weight".

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I don't think I'm following you here. How about using some actual numbers and explain what you're getting at.

I would think that given the right base oil, a 0w60 could be entirely possible.

 

[Gary Allan]

quote:

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I don't think I'm following you here. How about using some actual numbers and explain what you're getting at.

I would think that given the right base oil, a 0w60 could be entirely possible.

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Well, if you look at 5w and assume (and I am assuming here) the 0w is below that spec, it falls somewhere at or below 17 CST @ 40 C ..yet 50 appears to peak out at around 19 CST @ 100 C. That means, if I read the chart correctly, that a 0w-60 would have to be heavier @ 100 C than it is @ 40 C. That is, it would have a viscosity increase at a higher temperature. This would truly make it the "Holy Grail" of oils ..thinner when cold ..slightly heavier when hot.

sprintman, I believe, sees what I'm saying here.

 

[sprintman]

Penrite Synthetic 5 is a 5W60 is A3, B3, B4, SL/CF, MB 229.1/229.3, VI 186, Viscosity cSt @ 40C 163, Viscosity cSt @ 100C 24.9, NOACK 5.7%, Pour -42C, Zinc .120%, Phosphorous .110%, Cold Crank Cp @ -30C 6290.

 

[G-MAN]

quote:

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Originally posted by Gary Allan:

quote:

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I don't think I'm following you here. How about using some actual numbers and explain what you're getting at.

I would think that given the right base oil, a 0w60 could be entirely possible.

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Well, if you look at 5w and assume (and I am assuming here) the 0w is below that spec, it falls somewhere at or below 17 CST @ 40 C ..yet 50 appears to peak out at around 19 CST @ 100 C. That means, if I read the chart correctly, that a 0w-60 would have to be heavier @ 100 C than it is @ 40 C. That is, it would have a viscosity increase at a higher temperature. This would truly make it the "Holy Grail" of oils ..thinner when cold ..slightly heavier when hot.

sprintman, I believe, sees what I'm saying here.

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Okay, I see what you're talking about now. Here's where you're making your mistake: You are assuming that a 0w60 oil would have to have the the vis of a 0w at 40C. It wouldn't. It would have to have the vis of a 60 wt at 40C. It would have to have the vis of a 0w at the J300 cold cranking and cold pumping test temperatures of -35 and -30. In other words, a straight 0w oil is always going to be thinner at 40C than a 0wXX oil.

 

[toyota62]

Penrite has released a 0w-50 fully synthetic engine oil in australia.

 

[Curious Kid]

How about having a base oil or blend there of with a HIGH viscosity index (essentially what adding VII's to dino's oils enable them to extend their weight gaps, less or not required by synths), and has the flow capabilities to meet the cold and hot flow requirements?