dnewton3
Staff member
Annual Dmax UOA update
Code:
UOA # 4 3 n/a 1 Univ Avg
Date 2012 2011 2010 2009
grade (dino) 10w-30 10w-30 15w-40 10w-30
Brand Rot T Rot T Dlv1300 Rot T
Oil Mileage 3.0k 6.5k 7.0k 6.0k 6.6k
Truck mileage 36.5 33.5k 27k 20k
Filter Wix PureOne Wix Wix
Al 1 2 n/a 3 9
Chrom 0 1 n/a 0 0
Fe 7 14 n/a 10 12
Cu 2 3 n/a 5 10
Pb 1 5 n/a 2 3
Tn 1 0 n/a 1 1
Molyb 2 14 n/a 2 29
Nickel 0 1 n/a 0 0
Manganese 0 0 n/a 0 0
Potas 6 11 n/a 13 3
Boron 27 35 n/a 24 54
Silicon 9 11 n/a 11 9
Sodium 5 7 n/a 2 4
Calcium 2232 2336 n/a 2358 2661
Magnesium 26 113 n/a 10 229
Phos 951 1115 n/a 1001 1090
Zn 1069 1314 n/a 1201 1290
Barium 0 0 n/a 0 0
SUS @ 210F 64.7 67.6 n/a 72.5 58-69
cSt @ 100C 11.54 12.31 n/a 13.6 10-12.5
FP 410 415 n/a 425 >425
Fuel .5 0 n/a 0 < 2
Antifreeze 0 0 n/a 0 0
Water 0 0 n/a 0 < .5
Insolubles 0.2 0.2 n/a 0.3 < .6
TBN 8.1 n/a n/a n/a n/a
This is from my 2006 Dmax; truck is essentially stock with no power enhancements. The total mileage is much lower this year as we did not travel far out west, but did pull the trailer several places locally in-state. I ran 3k miles (~13 months) for this UOA cycle, with perhaps 40% of the miles allotted to heavy towing of RV and boat.
This does not indicate an OCI; this is a UOA only. Oil and filter were left intact and are still in service. Sample taken via the Fumoto drain valve as a “live” sample while running, after full temps achieved, to get a well-mixed sample representative of the sump load. No make-up oil added.
Because this vehicle is now out of warranty, I’m not obligated to do the “… or one year” OEM OCIs. So, I’m putting my money where my mouth is, so to speak. I’m going to run at least a two year OCI, and perhaps more depending upon next year’s UOA results. I’m doing this as proof of concept; oil has no idea how old it is, nor does the filter. Being able to UOA gives me peace of mind, and stays true to my mantra of using data as the driving factor in a pragmatic and safe maintenance program.
Wear, as expected with low exposure, was low. Contaminants are low. TBN is fine. Condemnation limits are so far out into the distance I can’t even see them on the horizon. No reason whatsoever not to extend the OCI by a year and resample.
Blackstone comments:
There isn’t anything present in this sample to suggest it’s time to change this oil out yet. Metal accumulations are very low, as we’d expect after just 3,000 miles on the oil. Averages are based on 6,700 ... We found .5% fuel in this sample, but that’s not enough to call a problem since it’s likely operational factors to blame. The TBN measured 8.1 showing plenty of active additive left in the oil … Go ahead and leave this oil in use. Up to 8,000 miles should be no problem at all.
Your comments and questions accepted.
Code:
UOA # 4 3 n/a 1 Univ Avg
Date 2012 2011 2010 2009
grade (dino) 10w-30 10w-30 15w-40 10w-30
Brand Rot T Rot T Dlv1300 Rot T
Oil Mileage 3.0k 6.5k 7.0k 6.0k 6.6k
Truck mileage 36.5 33.5k 27k 20k
Filter Wix PureOne Wix Wix
Al 1 2 n/a 3 9
Chrom 0 1 n/a 0 0
Fe 7 14 n/a 10 12
Cu 2 3 n/a 5 10
Pb 1 5 n/a 2 3
Tn 1 0 n/a 1 1
Molyb 2 14 n/a 2 29
Nickel 0 1 n/a 0 0
Manganese 0 0 n/a 0 0
Potas 6 11 n/a 13 3
Boron 27 35 n/a 24 54
Silicon 9 11 n/a 11 9
Sodium 5 7 n/a 2 4
Calcium 2232 2336 n/a 2358 2661
Magnesium 26 113 n/a 10 229
Phos 951 1115 n/a 1001 1090
Zn 1069 1314 n/a 1201 1290
Barium 0 0 n/a 0 0
SUS @ 210F 64.7 67.6 n/a 72.5 58-69
cSt @ 100C 11.54 12.31 n/a 13.6 10-12.5
FP 410 415 n/a 425 >425
Fuel .5 0 n/a 0 < 2
Antifreeze 0 0 n/a 0 0
Water 0 0 n/a 0 < .5
Insolubles 0.2 0.2 n/a 0.3 < .6
TBN 8.1 n/a n/a n/a n/a
This is from my 2006 Dmax; truck is essentially stock with no power enhancements. The total mileage is much lower this year as we did not travel far out west, but did pull the trailer several places locally in-state. I ran 3k miles (~13 months) for this UOA cycle, with perhaps 40% of the miles allotted to heavy towing of RV and boat.
This does not indicate an OCI; this is a UOA only. Oil and filter were left intact and are still in service. Sample taken via the Fumoto drain valve as a “live” sample while running, after full temps achieved, to get a well-mixed sample representative of the sump load. No make-up oil added.
Because this vehicle is now out of warranty, I’m not obligated to do the “… or one year” OEM OCIs. So, I’m putting my money where my mouth is, so to speak. I’m going to run at least a two year OCI, and perhaps more depending upon next year’s UOA results. I’m doing this as proof of concept; oil has no idea how old it is, nor does the filter. Being able to UOA gives me peace of mind, and stays true to my mantra of using data as the driving factor in a pragmatic and safe maintenance program.
Wear, as expected with low exposure, was low. Contaminants are low. TBN is fine. Condemnation limits are so far out into the distance I can’t even see them on the horizon. No reason whatsoever not to extend the OCI by a year and resample.
Blackstone comments:
There isn’t anything present in this sample to suggest it’s time to change this oil out yet. Metal accumulations are very low, as we’d expect after just 3,000 miles on the oil. Averages are based on 6,700 ... We found .5% fuel in this sample, but that’s not enough to call a problem since it’s likely operational factors to blame. The TBN measured 8.1 showing plenty of active additive left in the oil … Go ahead and leave this oil in use. Up to 8,000 miles should be no problem at all.
Your comments and questions accepted.
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