Previous sample:
This is the second sample from this tractor of HPL 15w-40 CK-4 Cold Climate. The previous oil was Northland 15w-40. The HPL has been in the sump for 236 hours and 19 months. Our plan is to run this oil and only change when the UOA says it needs to be changed. With a sump capacity of 28 quarts, it's pretty expensive to change and there is no reason to dump good oil on a rote annual oil change. This oil will be sampled again next fall and should have around 450 hours. Given the very dirty environment Ag machinery runs, the Si is quite low. The JD engine air filtering system is doing a great job.
John Deere 7830 6.8L 150hrs/1 year - HPL 15w-40 CK-4 Cold Climate
This is the first sample from this tractor of HPL 15w-40 CK-4 Cold Climate. The previous oil was Northland 15w-40. The HPL has been in the sump for 150 hours and 12 months. Our plan is to run this oil and only change when the UOA says it needs to be changed. With a sump capacity of 28 quarts...
bobistheoilguy.com
This is the second sample from this tractor of HPL 15w-40 CK-4 Cold Climate. The previous oil was Northland 15w-40. The HPL has been in the sump for 236 hours and 19 months. Our plan is to run this oil and only change when the UOA says it needs to be changed. With a sump capacity of 28 quarts, it's pretty expensive to change and there is no reason to dump good oil on a rote annual oil change. This oil will be sampled again next fall and should have around 450 hours. Given the very dirty environment Ag machinery runs, the Si is quite low. The JD engine air filtering system is doing a great job.
| Sample Information | ||
| Sample Date | 3/25/2023 | 10/28/2023 |
| Machine Time hours | 1,800 | 1,886 |
| Oil Time hours | 150 | 236 |
| Filter Age hours | 150 | 236 |
| Oil Changed | No | No |
| Filter Changed | No | No |
| Make-up oil | 0 | 0 |
| Brand | HPL | HPL |
| Viscosity | 15w-40 CC | 15w-40 CC |
| Wear Metals | ||
| Iron | 22 | 30 |
| Chromium | <1 | 0 |
| Nickel | 0 | 0 |
| Titanium | <1 | 1 |
| Silver | <1 | 0 |
| Aluminum | 2 | 4 |
| Lead | 1 | 1 |
| Copper | 2 | 2 |
| Tin | <1 | 0 |
| Vanandium | 0 | 0 |
| Cadmium | 0 | 0 |
| Additives | ||
| Boron | 17 | 21 |
| Barium | 0 | <1 |
| Molybdenum | 483 | 532 |
| Manganese | 1 | 0 |
| Magnesium | 917 | 972 |
| Calcium | 2431 | 2338 |
| Phosphorus | 990 | 1043 |
| Zinc | 1184 | 1240 |
| Contaminants | ||
| Silicon | 9 | 9 |
| Sodium | 1 | <1 |
| Potassium | 0 | 0 |
| Fuel % | <1 | <1 |
| Glycol | NEG | NEG |
| Soot% | 0.2 | 0.3 |
| Fluid Condition | ||
| TBN | 17.58 | 16.66 |
| Viscosity | 14.2 | 14.5 |
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