Differential Wear via Used Oil Analysis
01-30-2014, 12:56 PM
#1
Thread Starter
Differential Wear via Used Oil Analysis
Hey all, I just did another UOA (Used Oil Analysis) on my S2000 when changing out fluids. Engine oil is fine but the Differential fluid is looking worse than before. Here's a brief history of my car...
2006 Honda S2000
Spec'd out for SCCA Solo STR class (still using stock differential). Was pretty much stock until 2011.
2009 - Purchased the car mid June
8/6/2009 : Changed diff fluid with LE1605 (26,500 miles on car)
2009 - Began autocrossing casually. Daily driven
2010 - Picking up autocross intensity, 2 local events per month, attended first Nationals event. Daily driven
3/29/2010 : Changed diff fluid with LE1605 (37k miles on car. 10,634 miles on diff oil)
11/20/2010 : Changed diff fluid to Amsoil Severe Gear 75w-110 (49,668 miles on car. 12,484 miles on oil)
2011 - Missed Nationals but participated in 2 local events/month, 1 Tour and 1 ProSolo. Daily driven
2012 - 2 local events per month, 1 Tour, 1 ProSolo, Nationals
3/10/2012 : Changed diff fluid with Amsoil Severe Gear 75w-110 (65,000 miles on car. 15,332 miles on oil). UOA performed on this oil shown in the report attached.
2013 - Stopped daily driving it in March. 2 local events/month, 1 Tour, 1 ProSolo, Nationals.
2014 - Same as last year...
1/19/2014 : Changed diff fluid with Amsoil Severe Gear 75w-110 (83,388 miles on car. 18,388 miles on oil). I missed my schedule on changing the diff fluid as I try and shoot for 10k-13k miles. UOA performed on this oil shown in the report attached.
[attachment=53045:Screen Shot 2014-01-30 at 3.40.31 PM.png]
Looking to see if anyone else has done UOA on heavily autocrossed S2000s and what oil you've been using. I thought about switching back to LE1605 but I never did a UOA on it. I'm going to dial back to changing the differential fluid once a year since I'm barely even putting 3k miles on the car in a single year now that I have a daily driver.
2006 Honda S2000
Spec'd out for SCCA Solo STR class (still using stock differential). Was pretty much stock until 2011.
2009 - Purchased the car mid June
8/6/2009 : Changed diff fluid with LE1605 (26,500 miles on car)
2009 - Began autocrossing casually. Daily driven
2010 - Picking up autocross intensity, 2 local events per month, attended first Nationals event. Daily driven
3/29/2010 : Changed diff fluid with LE1605 (37k miles on car. 10,634 miles on diff oil)
11/20/2010 : Changed diff fluid to Amsoil Severe Gear 75w-110 (49,668 miles on car. 12,484 miles on oil)
2011 - Missed Nationals but participated in 2 local events/month, 1 Tour and 1 ProSolo. Daily driven
2012 - 2 local events per month, 1 Tour, 1 ProSolo, Nationals
3/10/2012 : Changed diff fluid with Amsoil Severe Gear 75w-110 (65,000 miles on car. 15,332 miles on oil). UOA performed on this oil shown in the report attached.
2013 - Stopped daily driving it in March. 2 local events/month, 1 Tour, 1 ProSolo, Nationals.
2014 - Same as last year...
1/19/2014 : Changed diff fluid with Amsoil Severe Gear 75w-110 (83,388 miles on car. 18,388 miles on oil). I missed my schedule on changing the diff fluid as I try and shoot for 10k-13k miles. UOA performed on this oil shown in the report attached.
[attachment=53045:Screen Shot 2014-01-30 at 3.40.31 PM.png]
Looking to see if anyone else has done UOA on heavily autocrossed S2000s and what oil you've been using. I thought about switching back to LE1605 but I never did a UOA on it. I'm going to dial back to changing the differential fluid once a year since I'm barely even putting 3k miles on the car in a single year now that I have a daily driver.
01-30-2014, 01:00 PM
#2
Thread Starter
Here's my Engine oil analysis for those who are curious. I've been using Amsoil 0w-30 for stints of 6500-8500 miles.
[attachment=53046:Screen Shot 2014-01-30 at 3.59.22 PM.png]
[attachment=53046:Screen Shot 2014-01-30 at 3.59.22 PM.png]
01-30-2014, 06:07 PM
#4
Here's a thread with LE1605 oil analysis. It's not a tracked/auto-x car, but it seems to have done better than his old Amsoil diff fluid, fwiw.
https://www.s2ki.com/s2000/topic/105...le1605-sae110/
Changing the diff fluid every year I guess definitely looks like a good idea base done your UOA.
https://www.s2ki.com/s2000/topic/105...le1605-sae110/
Changing the diff fluid every year I guess definitely looks like a good idea base done your UOA.
01-30-2014, 07:53 PM
#5
My girlfriend wrote your report 
Everytime an s2000 sample comes in I get a text and wonder who it is LOL
I have a daily driver s2000 and run LE in the diff but change it about 5k just to be safe, I'll be sending another in shortly with about 6k miles and with a full season of autox on it(16 events, usually 5-7 runs and I usually do the "fun runs" so figure about 120-150 runs) I'll post up when I get it back to compare
Everytime an s2000 sample comes in I get a text and wonder who it is LOL
I have a daily driver s2000 and run LE in the diff but change it about 5k just to be safe, I'll be sending another in shortly with about 6k miles and with a full season of autox on it(16 events, usually 5-7 runs and I usually do the "fun runs" so figure about 120-150 runs) I'll post up when I get it back to compare
01-31-2014, 08:25 AM
#6
My girlfriend wrote your report
Everytime an s2000 sample comes in I get a text and wonder who it is LOL
I have a daily driver s2000 and run LE in the diff but change it about 5k just to be safe, I'll be sending another in shortly with about 6k miles and with a full season of autox on it(16 events, usually 5-7 runs and I usually do the "fun runs" so figure about 120-150 runs) I'll post up when I get it back to compare
Everytime an s2000 sample comes in I get a text and wonder who it is LOL
I have a daily driver s2000 and run LE in the diff but change it about 5k just to be safe, I'll be sending another in shortly with about 6k miles and with a full season of autox on it(16 events, usually 5-7 runs and I usually do the "fun runs" so figure about 120-150 runs) I'll post up when I get it back to compare
update - they're doing the analysis of the engine oil today
01-31-2014, 09:08 AM
#7
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My girlfriend wrote your report
Everytime an s2000 sample comes in I get a text and wonder who it is LOL
I have a daily driver s2000 and run LE in the diff but change it about 5k just to be safe, I'll be sending another in shortly with about 6k miles and with a full season of autox on it(16 events, usually 5-7 runs and I usually do the "fun runs" so figure about 120-150 runs) I'll post up when I get it back to compare
Everytime an s2000 sample comes in I get a text and wonder who it is LOL
I have a daily driver s2000 and run LE in the diff but change it about 5k just to be safe, I'll be sending another in shortly with about 6k miles and with a full season of autox on it(16 events, usually 5-7 runs and I usually do the "fun runs" so figure about 120-150 runs) I'll post up when I get it back to compare
Thanks.
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02-03-2014, 04:26 AM
#9
Thread Starter
Here's a thread with LE1605 oil analysis. It's not a tracked/auto-x car, but it seems to have done better than his old Amsoil diff fluid, fwiw.
https://www.s2ki.com/s2000/topic/105...le1605-sae110/
Changing the diff fluid every year I guess definitely looks like a good idea base done your UOA.
https://www.s2ki.com/s2000/topic/105...le1605-sae110/
Changing the diff fluid every year I guess definitely looks like a good idea base done your UOA.
My girlfriend wrote your report
Everytime an s2000 sample comes in I get a text and wonder who it is LOL
I have a daily driver s2000 and run LE in the diff but change it about 5k just to be safe, I'll be sending another in shortly with about 6k miles and with a full season of autox on it(16 events, usually 5-7 runs and I usually do the "fun runs" so figure about 120-150 runs) I'll post up when I get it back to compare
Everytime an s2000 sample comes in I get a text and wonder who it is LOL
I have a daily driver s2000 and run LE in the diff but change it about 5k just to be safe, I'll be sending another in shortly with about 6k miles and with a full season of autox on it(16 events, usually 5-7 runs and I usually do the "fun runs" so figure about 120-150 runs) I'll post up when I get it back to compare
Sweet, let us know how it goes.
02-04-2014, 04:06 PM
#10
We used to run the Millers CRX BM 80-140w in problematic diffs to keep the wear down for Safari events, which worked wonders - doubling the service life wasn't uncommon.
It's since been upgraded to 75-140w CRX NT, which is based on their new nanotech range - haven't had it in anything long enough to confirm the durability but I will say when we did all 3 diffs on an old Fouquet we had it quietened all the diff chatter/noise down and it made nearly 10hp more at the wheels just from an oil change - unfortunately it got sold shortly after so I don't know what the wear life is like, but all the guys over here running the NT reckon it's even better than the old formulation for gear/dog life.
It's since been upgraded to 75-140w CRX NT, which is based on their new nanotech range - haven't had it in anything long enough to confirm the durability but I will say when we did all 3 diffs on an old Fouquet we had it quietened all the diff chatter/noise down and it made nearly 10hp more at the wheels just from an oil change - unfortunately it got sold shortly after so I don't know what the wear life is like, but all the guys over here running the NT reckon it's even better than the old formulation for gear/dog life.