Break-in oil analysis after 1 year and 3,750 miles
01-06-2004, 11:27 PM
#31
Registered User
[QUOTE]Originally posted by tritium_pie
ordered my Mr. Moly Break-In stuff just now.
I had changed my oil at 5215 and have put another 1500 miles or so on regular Chevron dino oil, but oh well.
ordered my Mr. Moly Break-In stuff just now.
I had changed my oil at 5215 and have put another 1500 miles or so on regular Chevron dino oil, but oh well.
01-07-2004, 04:51 AM
#32
Registered User
No that you fledgling tribolgists are in the game, you are ready to get to the finer points of lubrication theory and practice: Here's tribomutation.
http://mechanik.tu-berlin.de/popov/publica...ns/Nanowear.pdf
Note that breakin not only involves asperties being ground/broken off, and redeposited, but there is actually chemical reation of hydrogen at the moelecular level into the steel itself.
This is also true (chemical impact on break-in and wear) for the weak acids formed when the car is started and moved a few feet, or when it is left idling for warm up rather than driven moderately.
http://mechanik.tu-berlin.de/popov/publica...ns/Nanowear.pdf
Note that breakin not only involves asperties being ground/broken off, and redeposited, but there is actually chemical reation of hydrogen at the moelecular level into the steel itself.
This is also true (chemical impact on break-in and wear) for the weak acids formed when the car is started and moved a few feet, or when it is left idling for warm up rather than driven moderately.
01-07-2004, 07:41 AM
#34
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Originally posted by RedondoS2K
Bret,
I bought MY03 S2000 few weeks after you did, but drove a little more during the same time span and ended up with 5,800 miles after a year. Most of the miles were from couple of the long road trips we took, and therefore is mostly highway miles. Following is the test result of my break-in oil from Blackstone Labs. As you can see, the result is quite similar to yours, except for little additional wear. I have changed the oil with Castrol GTX 10W-30 and plan to keep it in there for 3,750 miles or 6 month, at which time I will consider using Mobil1, if the test result indicate end of break-in period. BTW, I've also changed the differential oil at the same time with Mobil1 75W-90. The factory oil from the differential was actually pretty clear, but there were quite a bit of fine metallic flakes that came out initially with the drain plug. For this reason alone, it was probably a good idea. Curiously, I didn't smell any strong unpleasant odor from the factory oil that was mentioned in many of the previous posts. Maybe I am not abusing the differental enough
Bret,
I bought MY03 S2000 few weeks after you did, but drove a little more during the same time span and ended up with 5,800 miles after a year. Most of the miles were from couple of the long road trips we took, and therefore is mostly highway miles. Following is the test result of my break-in oil from Blackstone Labs. As you can see, the result is quite similar to yours, except for little additional wear. I have changed the oil with Castrol GTX 10W-30 and plan to keep it in there for 3,750 miles or 6 month, at which time I will consider using Mobil1, if the test result indicate end of break-in period. BTW, I've also changed the differential oil at the same time with Mobil1 75W-90. The factory oil from the differential was actually pretty clear, but there were quite a bit of fine metallic flakes that came out initially with the drain plug. For this reason alone, it was probably a good idea. Curiously, I didn't smell any strong unpleasant odor from the factory oil that was mentioned in many of the previous posts. Maybe I am not abusing the differental enough
01-07-2004, 12:52 PM
#35
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Bret, nice info to have. I also switched out my breakin oil at 4k. Used castrol GTX 10w-30 after that (I thought I heard something about it having higher Moly levels than some other dino oils). Wish I had thought of the Moly additive but oh well. My car burned about 1 quart every 3500 miles untill about 10k when it stopped. I now have 12k and no oil loss at all. Next change will be to Mobil 1 10w-30.
P.S. I switched my tranny and diff oil at 3.5k too (with Honda MTF and Castrol? 75w-90 which is what my dealer uses). Shifting improved a bit. Just switched again with Honda MTF and Amsoil 80w-90 synthetic.
P.S. I switched my tranny and diff oil at 3.5k too (with Honda MTF and Castrol? 75w-90 which is what my dealer uses). Shifting improved a bit. Just switched again with Honda MTF and Amsoil 80w-90 synthetic.
01-07-2004, 01:26 PM
#36
Registered User
[QUOTE]Originally posted by RedondoS2K
Bret,
I bought MY03 S2000 few weeks after you did, but drove a little more during the same time span and ended up with 5,800 miles after a year. Most of the miles were from couple of the long road trips we took, and therefore is mostly highway miles. Following is the test result of my break-in oil from Blackstone Labs. As you can see, the result is quite similar to yours, except for little additional wear. I have changed the oil with Castrol GTX 10W-30 and plan to keep it in there for 3,750 miles or 6 month, at which time I will consider using Mobil1, if the test result indicate end of break-in period. BTW, I've also changed the differential oil at the same time with Mobil1 75W-90. The factory oil from the differential was actually pretty clear, but there were quite a bit of fine metallic flakes that came out initially with the drain plug. For this reason alone, it was probably a good idea. Curiously, I didn't smell any strong unpleasant odor from the factory oil that was mentioned in many of the previous posts. Maybe I am not abusing the differental enough
http://gallery.s2ki.com/imagecatalog/image...eview/103801/6/
Bret,
I bought MY03 S2000 few weeks after you did, but drove a little more during the same time span and ended up with 5,800 miles after a year. Most of the miles were from couple of the long road trips we took, and therefore is mostly highway miles. Following is the test result of my break-in oil from Blackstone Labs. As you can see, the result is quite similar to yours, except for little additional wear. I have changed the oil with Castrol GTX 10W-30 and plan to keep it in there for 3,750 miles or 6 month, at which time I will consider using Mobil1, if the test result indicate end of break-in period. BTW, I've also changed the differential oil at the same time with Mobil1 75W-90. The factory oil from the differential was actually pretty clear, but there were quite a bit of fine metallic flakes that came out initially with the drain plug. For this reason alone, it was probably a good idea. Curiously, I didn't smell any strong unpleasant odor from the factory oil that was mentioned in many of the previous posts. Maybe I am not abusing the differental enough
http://gallery.s2ki.com/imagecatalog/image...eview/103801/6/
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