0w-10
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if the engine had a big enough oil pump to maintain sufficent oil pressure at even the hottest temps, i wouldnt care if the oil was a 0w5.
Master Acid,
the oil pump only ensures that oil is provided, and in the right volumes.
It doesn't provide hydrostatic lubrication, i.e. keeping the parts apart.
As an aside, we have 40C water lubricating 4" bearings at work, running 1500RPM for 15 years between overhauls.
the oil pump only ensures that oil is provided, and in the right volumes.
It doesn't provide hydrostatic lubrication, i.e. keeping the parts apart.
As an aside, we have 40C water lubricating 4" bearings at work, running 1500RPM for 15 years between overhauls.
Isn't this a tough one to get people to comprehend.
Shannow - Maybe you could go 15 years and a day if you used GC!
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(visions of the ventriloquist Larvel Jones (Michael Winslow) on Police Academy where they saw martial arts demonstration.. as he, once again, recreated lousy Taiwanese film lip synch)
(lips moving early) "I will accept your challenge!" (lips moving late)
http://green.autoblog.com/2011/03/15/she...ng-0w-10-synth/
I didn't expect such improvements in economy
I didn't expect such improvements in economy
A well respected member Gary Allan has done quite a bit of testing with 0W10 oil. There's info about it on this site for anyone interested in searching for it. IIRC his engine is spec'd for a 30 grade oil, and his UOA reports were good.
SO FAR
Originally Posted By: LarryL
Anyone using 0w-10 on the street. Just met a guy with a TSX, heavy enging and suspension mods, that hammers the car, got 11k miles with no problems, so far. The oil is Maxium4 Ultra, a synthetic from a small company in California. This guy sez there are others, with expensive engines using this stuff.
Originally Posted By: LarryL
Anyone using 0w-10 on the street. Just met a guy with a TSX, heavy enging and suspension mods, that hammers the car, got 11k miles with no problems, so far. The oil is Maxium4 Ultra, a synthetic from a small company in California. This guy sez there are others, with expensive engines using this stuff.
Hi,
these were the lubricant recommendations for all 1941 US Manufacured cars:
Engine:
Over 32F = 20 or 20W (highest 30), then some 90F> 30, 40 (highest 50)
Over 10F = 20W (lowest 10W)
Over -10F = 10W
Below -10F = 10W (plus 10% Kerosine - for all vehicles except Crosley)
There is little new that wasn't old
these were the lubricant recommendations for all 1941 US Manufacured cars:
Engine:
Over 32F = 20 or 20W (highest 30), then some 90F> 30, 40 (highest 50)
Over 10F = 20W (lowest 10W)
Over -10F = 10W
Below -10F = 10W (plus 10% Kerosine - for all vehicles except Crosley)
There is little new that wasn't old
As G-MAN says, 7 is a thin 0W-20. Most 0W-20s are in the 8's. It doesn't bother me if Maxima labels it 0W-10, it's typical marketing hyperbole. As long as this synthetic oil resists shear well and the cooling system keeps it cool enough, it will work fine. The base oils are even more important than additives for long term protection, and they claim they're 100% triple esters. Hopefully, they're using good, complex esters and good additives. Whew, they should be, since this stuff costs $16 per liter! I'm not a formulator, so I can't address the viability of 100% esters.
Considering that a typical DI additive package alone adds significant viscosity to a formulation, a 0W-10 oil would have to have a pretty thin base oil to deliver 0W and a finished oil viscosity between 3.8 and 5.6 cSt @ 100C. Selection of a thin base oil is primarily limited by its NOACK volatility and the HTHS viscosity requirements. This pretty much requires a pure (narrow cut) synthetic ester base oil with a very high Viscosity Index.
I know of a few esters that fit the bill and also provide very high lubricity, but are very expensive. They are not "triple esters" however, whatever that means.
Tom NJ
I know of a few esters that fit the bill and also provide very high lubricity, but are very expensive. They are not "triple esters" however, whatever that means.
Tom NJ
What would a 10-weight SAE oil have for KV100? SAE J300 has 20-weight running from 5.6-9.3 cSt. If they were keeping the same ratio of lower to upper limits, a 10-weight would run from 3.4 to 5.6 cSt. And another increment down on min allowable HTHS would be 2.3 cP.
Why not just put anti-freeze in your crankcase? Or maybe propylene glycol?
Why not just put anti-freeze in your crankcase? Or maybe propylene glycol?
Redline has a legitimate 0w10 racing oil:
Phosphorus, avg PPM 2500
Zinc, avg PPM 2400
SAE Viscosity Grade (Motor Oil) 0W10
SAE Viscosity Grade 0W10
Vis @ 100°C, cSt 5.2
Vis @ 40°C, cSt 27.2
Viscosity Index 130
CCS Viscosity, Poise, @*C 30@-30°C
Pour Point, °C -54
Pour Point, °F -65
Flash Point, °C 215
Flash Point, °F 420
NOACK Evaporation Loss,1hr @ 482°F (250°C), % 6
Pretty astounding zddp content, isn't it?
NOACK is amazing, considering the low viscosity.
But they don't list HTHS.
Phosphorus, avg PPM 2500
Zinc, avg PPM 2400
SAE Viscosity Grade (Motor Oil) 0W10
SAE Viscosity Grade 0W10
Vis @ 100°C, cSt 5.2
Vis @ 40°C, cSt 27.2
Viscosity Index 130
CCS Viscosity, Poise, @*C 30@-30°C
Pour Point, °C -54
Pour Point, °F -65
Flash Point, °C 215
Flash Point, °F 420
NOACK Evaporation Loss,1hr @ 482°F (250°C), % 6
Pretty astounding zddp content, isn't it?
NOACK is amazing, considering the low viscosity.
But they don't list HTHS.
http://www.bobistheoilguy.com/forums/ubb...rue#Post1387426
Excellent results in a street driven environment.
Excellent results in a street driven environment.
Last edited:
Originally Posted By: A_Harman
What would a 10-weight SAE oil have for KV100?
A 10 weight isn't defined yet (The industry is considering it), but a 0W must have 3.8 cSt minimum at 100C.
Tom NJ
What would a 10-weight SAE oil have for KV100?
A 10 weight isn't defined yet (The industry is considering it), but a 0W must have 3.8 cSt minimum at 100C.
Tom NJ
Originally Posted By: Tom NJ
Originally Posted By: A_Harman
What would a 10-weight SAE oil have for KV100?
A 10 weight isn't defined yet (The industry is considering it), but a 0W must have 3.8 cSt minimum at 100C.
Tom NJ
That's interesting. I had been wondering if 10-weight did exist on older copies of SAE specs which I hadn't seen.
Originally Posted By: A_Harman
What would a 10-weight SAE oil have for KV100?
A 10 weight isn't defined yet (The industry is considering it), but a 0W must have 3.8 cSt minimum at 100C.
Tom NJ
That's interesting. I had been wondering if 10-weight did exist on older copies of SAE specs which I hadn't seen.
If the introduction of 0w10 brings the price of the oils I use down half price or more, I welcome it with open arms.
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