Oil Burning
10-01-2007, 09:26 PM
#12
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Originally Posted by Saki GT,Oct 1 2007, 06:42 PM
Is oil leaking from anywhere, like the filter?
10-02-2007, 02:05 AM
#13
You may want to try a different brand of oil. That's the simplest solution.
I'm still not sold on Krank Vents. If this was a big enough issue with the S2000, Honda would have developed a device with a similar function to combat oil consumption.
The S2000 loves to consume most Mobil products - with the exception of Delvac and possibly M1 EP. Most of the consumption posts on this site are Mobil 1 related. It doesn't surprise me your S2000 is consuming Honda branded oil (Mobil oil).
I've used Amsoil synthetic for over 30,000 miles and my S2000 burns less than 0.25 qt every 3,000 miles. My car is in VTEC quite often. I use Amsoil 5W30 during the colder months and Amsoil 10W30 for the three hottest months. However, I don't have a problem using Amsoil 5W30 year round.
Amsoil and Redline oils consistently have much lower consumption numbers - without the use of Krank Vents.
Your PCV valve isn't the problem.
I'm still not sold on Krank Vents. If this was a big enough issue with the S2000, Honda would have developed a device with a similar function to combat oil consumption.
The S2000 loves to consume most Mobil products - with the exception of Delvac and possibly M1 EP. Most of the consumption posts on this site are Mobil 1 related. It doesn't surprise me your S2000 is consuming Honda branded oil (Mobil oil).
I've used Amsoil synthetic for over 30,000 miles and my S2000 burns less than 0.25 qt every 3,000 miles. My car is in VTEC quite often. I use Amsoil 5W30 during the colder months and Amsoil 10W30 for the three hottest months. However, I don't have a problem using Amsoil 5W30 year round.
Amsoil and Redline oils consistently have much lower consumption numbers - without the use of Krank Vents.
Your PCV valve isn't the problem.
10-02-2007, 07:33 AM
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You noticed the oil level drop.
Did you test the oil level under the same circumstances?
If changing to another brand of oil helps it probably has more to do with the volatility of the oil you're using now: your engine doesn't burn oil, the lighter fractions of the oil simply evaporate.
True synthetics usually evaporate less over time.
I'm using a 0W-30 and with KrankVents the oil usage has dropped considerably.
Viscosity (cold or warm) is IMO not an issue here.
Did you test the oil level under the same circumstances?
If changing to another brand of oil helps it probably has more to do with the volatility of the oil you're using now: your engine doesn't burn oil, the lighter fractions of the oil simply evaporate.
True synthetics usually evaporate less over time.
I'm using a 0W-30 and with KrankVents the oil usage has dropped considerably.
Viscosity (cold or warm) is IMO not an issue here.
10-02-2007, 09:48 AM
#15
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1 quart per 1,200 miles is not burning oil...that's more like an oil leak.
but assuming there's no leak...krank vents do indeed reduce oil consumption. whether they are overall "good" is still up to debate, but they DO reduce oil consumption.
but assuming there's no leak...krank vents do indeed reduce oil consumption. whether they are overall "good" is still up to debate, but they DO reduce oil consumption.
10-02-2007, 10:02 AM
#16
Exactly my point SpitfireS - Amsoil, Redline and a few other high quality synthetic oils have very low volatility ratings (NOACK volatility rating). This fact alone prevents oil loss through evaporation and consumption.
You mentioned the oil doesn't "burn off" but rather evaporates. Much of the evaporated volatile components of oil are still consumed by the engine. They're just not consumed in the conventional sense - as in due to worn components allowing oil to seep or blow by into the combustion chamber, and then burned. It's a function of chemical breakdown, not mechanical malfunction.
Another point - Mobil 1 is considered a "true" synthetic, yet is every bit as volatile as most dino oils. Not all synthetics oils are created equal.
As you've posted many times SpitfireS - the issue is more the quality of the oil, and not the weight. There should be no issue using a high quality synthetic 0W30 or 5W30 in lieu of a 10W30 weight oil.
You mentioned the oil doesn't "burn off" but rather evaporates. Much of the evaporated volatile components of oil are still consumed by the engine. They're just not consumed in the conventional sense - as in due to worn components allowing oil to seep or blow by into the combustion chamber, and then burned. It's a function of chemical breakdown, not mechanical malfunction.
Another point - Mobil 1 is considered a "true" synthetic, yet is every bit as volatile as most dino oils. Not all synthetics oils are created equal.
As you've posted many times SpitfireS - the issue is more the quality of the oil, and not the weight. There should be no issue using a high quality synthetic 0W30 or 5W30 in lieu of a 10W30 weight oil.
10-02-2007, 12:41 PM
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Thanks for all the responses guys. I'll probably try different brands of oils, as slipstream 444 suggests, and go from there. I know this problem seems pretty common with the F20c engine; all I hope is that the matter will not get worse.
