0-50w
Joined: Sep 2008
Posts: 3,730
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do the 5w-40, same properties just a bit of a different weight. The only way you will gain anything from the 0w-50 is if the car is seeing really high heat, and never colder temps.
I began using the 5w-40 in my K20 civic after we did a dyno comparison of that and Mobil 1, and the gains were apparant throughout the entire power band (2-4whp). I was not so concerned with the gains, but the thought that those gains had to have come from better lubrication, enough to make more hp.........
The oil is by far the best oil that I have ever used, which is why I continued using it in the S2k. IMO there is not a better oil in the market.
I began using the 5w-40 in my K20 civic after we did a dyno comparison of that and Mobil 1, and the gains were apparant throughout the entire power band (2-4whp). I was not so concerned with the gains, but the thought that those gains had to have come from better lubrication, enough to make more hp.........
The oil is by far the best oil that I have ever used, which is why I continued using it in the S2k. IMO there is not a better oil in the market.
Joined: Feb 2004
Posts: 1,491
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From: Pensacola
Originally Posted by bgoetz,May 30 2009, 09:04 PM
do the 5w-40, same properties just a bit of a different weight. The only way you will gain anything from the 0w-50 is if the car is seeing really high heat, and never colder temps.
I began using the 5w-40 in my K20 civic after we did a dyno comparison of that and Mobil 1, and the gains were apparant throughout the entire power band (2-4whp). I was not so concerned with the gains, but the thought that those gains had to have come from better lubrication, enough to make more hp.........
The oil is by far the best oil that I have ever used, which is why I continued using it in the S2k. IMO there is not a better oil in the market.
I began using the 5w-40 in my K20 civic after we did a dyno comparison of that and Mobil 1, and the gains were apparant throughout the entire power band (2-4whp). I was not so concerned with the gains, but the thought that those gains had to have come from better lubrication, enough to make more hp.........
The oil is by far the best oil that I have ever used, which is why I continued using it in the S2k. IMO there is not a better oil in the market.
And as such - the entire motor oil world would love to see your dyno plots showing this difference - with all the associated data from your "comparison" dyno runs.
Data showing all the variables including temps (ambient, intake etc), fuel pressure, oil pressure, oil temp, airflow, etc etc...
Additionally, 2-4 WHP is sometimes the difference between one run and another.
I'm not a fan of Mobil One, and there's no secret there. However, there is nothing in Eneos or in the way it's manufactured that will account for any difference in performance on a dyno.
To the OP: There is never a reason to run a 0W50 in any OEM or near stock S2000. Please use the search function because this question gets annoyingly asked about once a week and the answer hasn't changed - it's a BAD idea. Just because a 0W50 is a larger range than a 10W30 does NOT make it a better motor oil.
ANY OIL VISCOSITY OUTSIDE THE MANUFACTURERS RECOMMENDED RANGE IS NOT ADVISED. There - you can't misinterpret that, and it's all you really need to know about motor oil viscosity.
Registered User
Joined: Jun 2006
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I agree with the above. The recommended 10/30 is not a number that Honda arbritrarly picked out of thin air. 90% of the world should stay with this weight, the other 10% might vary by one weight grade. If your still in doubt, check with your local Honda dealer for any prevailing alternative.
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Joined: Jan 2006
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From: 17 ft below sea level.
Oh well... I just can't resist.
Eneos 0W-50 has these specs:
Visc @ 100C = 18.0 cSt
Visc @ 40C = 104 cSt
VI = 192
This gives you a visc of:
252 cSt @ 20C
327 cSt @ 15C
430 cSt @ 10C
576 cSt @ 5C
Below those temps the calculaton becomes inaccurate.
A popular 10W-30 (Mobil1 10W-30) has a visc of.... insert drum roll... of:
164 @ 20C
298 @ 10C
Hmmm...........
What would I want in my engine............???
At 100C the Eneos is almost twice as thick.
More pressure, less oil flow.
Less oil flow to reach the oil jets to cool the pistons and lube the cyl. walls.
Less oil flow to reach the cams.
Do you really want that @ 9000 rpm?
Or 8000 rpm?
At any rpm?
Eneos 0W-50 has these specs:
Visc @ 100C = 18.0 cSt
Visc @ 40C = 104 cSt
VI = 192
This gives you a visc of:
252 cSt @ 20C
327 cSt @ 15C
430 cSt @ 10C
576 cSt @ 5C
Below those temps the calculaton becomes inaccurate.
A popular 10W-30 (Mobil1 10W-30) has a visc of.... insert drum roll... of:
164 @ 20C
298 @ 10C
Hmmm...........
What would I want in my engine............???
At 100C the Eneos is almost twice as thick.
More pressure, less oil flow.
Less oil flow to reach the oil jets to cool the pistons and lube the cyl. walls.
Less oil flow to reach the cams.
Do you really want that @ 9000 rpm?
Or 8000 rpm?
At any rpm?
