M1EP - non energy conserving?!
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Author: Kaleli H.
Source: Industrial Lubrication and Tribology, October 2001, vol. 53, no. 6, pp. 237-255(19)
Publisher: Emerald Group Publishing Limited
"Two 10W30 mineral-base phosphorus containing (commercial) and phosphorus-free (P-Free) crankcase oils were tested in the engine dynamometer for the poisoning effects on a catalytic converter and emission-engine's performance. The emission results of the two oils were compared with and without a catalytic converter, including the light-off temperature of the catalyst. Surface characterisation was used to determine accumulated catalyst poisoning from the oil additives. The performance analysis shows that the catalytic converter lowers the torque and power for the commercial and P-Free oils, whereas the specific fuel consumption increases for both oils in the presence of the catalytic converter. In both cases of the presence and the absence of catalytic converter the torque, power and specific fuel consumption remain the same for phosphorus containing and P-Free oils. The presence of the catalytic converter shows lower HC and CO and higher CO2 emissions for both P-Free and commercial oils. Surface characterisation using x-ray microanalysis techniques of Scanning Electron Microscopy and indicated residual amounts of poisons, predominantly P, Ca, S and Zn deposited on the catalyst."
The above was written by some guy, and I thought I'd post it. It might be relevant. I think that there are other reasons why you want to have some phosphorus in the oil. One reason being that it seems to be one of the best ways at minimizing fristion in the engine. I also believe that there is a fine line that exists between making an oil last longer in an engine, and making oil more performance oriented, but not last as long in said engine. So, there is a trade off, but I think ultimately, it is just what one prefers.
Here are a couple more links to articles regarding this subject.
http://www.synthetic-oil-online.com/articles57.htm
http://www.rtvanderbilt.com/news_19.htm
BtB
PS. How many on this forum would reduce the life expectancy of their catalytic coverter for the sake of better engine protection?
[ March 19, 2005, 03:19 PM: Message edited by: Bob The Builder ]
Source: Industrial Lubrication and Tribology, October 2001, vol. 53, no. 6, pp. 237-255(19)
Publisher: Emerald Group Publishing Limited
"Two 10W30 mineral-base phosphorus containing (commercial) and phosphorus-free (P-Free) crankcase oils were tested in the engine dynamometer for the poisoning effects on a catalytic converter and emission-engine's performance. The emission results of the two oils were compared with and without a catalytic converter, including the light-off temperature of the catalyst. Surface characterisation was used to determine accumulated catalyst poisoning from the oil additives. The performance analysis shows that the catalytic converter lowers the torque and power for the commercial and P-Free oils, whereas the specific fuel consumption increases for both oils in the presence of the catalytic converter. In both cases of the presence and the absence of catalytic converter the torque, power and specific fuel consumption remain the same for phosphorus containing and P-Free oils. The presence of the catalytic converter shows lower HC and CO and higher CO2 emissions for both P-Free and commercial oils. Surface characterisation using x-ray microanalysis techniques of Scanning Electron Microscopy and indicated residual amounts of poisons, predominantly P, Ca, S and Zn deposited on the catalyst."
The above was written by some guy, and I thought I'd post it. It might be relevant. I think that there are other reasons why you want to have some phosphorus in the oil. One reason being that it seems to be one of the best ways at minimizing fristion in the engine. I also believe that there is a fine line that exists between making an oil last longer in an engine, and making oil more performance oriented, but not last as long in said engine. So, there is a trade off, but I think ultimately, it is just what one prefers.
Here are a couple more links to articles regarding this subject.
http://www.synthetic-oil-online.com/articles57.htm
http://www.rtvanderbilt.com/news_19.htm
BtB
PS. How many on this forum would reduce the life expectancy of their catalytic coverter for the sake of better engine protection?
[ March 19, 2005, 03:19 PM: Message edited by: Bob The Builder ]
If an engine doesn't burn any oil, does it matter at all how much P is in it?
If the P actually evaporates somehow and escapes the oil, then it should also evaporate from the coverter, since its temperature is much higher than that of the oil.
M1 EP probably is energy conservig, since it isn't extra thick like Syntec 0w30.
If the P actually evaporates somehow and escapes the oil, then it should also evaporate from the coverter, since its temperature is much higher than that of the oil.
M1 EP probably is energy conservig, since it isn't extra thick like Syntec 0w30.
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