Things are looking pretty good on my 2012 Jeep Grand Cherokee V6 with a little over 28,500 miles. The oil mix was 5 quarts of Pennzoil 5W30 and one quart of Pennzoil Platinum 5W30. The oil filter was the OEM MOPAR cartridge and the air filter was Wix.
Blackstone comments: "We've got no complaints for the first sample on your Grand Cherokee. Universal averages for this type of engine are based on ~5,300 miles of oil use, and you've got lower-than-average wear metals even though you've gone slightly longer on this interval. That's a great sign that there are no mechanical issues or other problems with the engine. We didn't find any fuel, dirt, coolant, or other contanimants, so this is a perfect report as far as we're concerned. TBN is strong at 5.5, so the oil had plenty of active additive. Nice!"
Code:
Miles on Oil 5,687
Miles on Unit 28,825
Sample date 10/16/14
Make up oil added none
Aluminum 3
Chromium 0
Iron 12
Copper 17
Lead 0
Tin 0
Molybdenum 215
Nickel 2
Manganese 0
Silver 0
Titanium 0
Potassium 0
Boron 37
Silicon 9
Sodium 4
Calcium 2894
Magnesium 13
Phosphorous 778
Zinc 962
Barium 0
Sus Viscosity @ 210F 55.5
cSt Viscosity @ 100C 8.91
Flashpoint in F 400
Fuel %
Antifreeze % 0.0
Water % 0.0
Insolubles % TR
TBN 5.5
Blackstone comments: "We've got no complaints for the first sample on your Grand Cherokee. Universal averages for this type of engine are based on ~5,300 miles of oil use, and you've got lower-than-average wear metals even though you've gone slightly longer on this interval. That's a great sign that there are no mechanical issues or other problems with the engine. We didn't find any fuel, dirt, coolant, or other contanimants, so this is a perfect report as far as we're concerned. TBN is strong at 5.5, so the oil had plenty of active additive. Nice!"
Code:
Miles on Oil 5,687
Miles on Unit 28,825
Sample date 10/16/14
Make up oil added none
Aluminum 3
Chromium 0
Iron 12
Copper 17
Lead 0
Tin 0
Molybdenum 215
Nickel 2
Manganese 0
Silver 0
Titanium 0
Potassium 0
Boron 37
Silicon 9
Sodium 4
Calcium 2894
Magnesium 13
Phosphorous 778
Zinc 962
Barium 0
Sus Viscosity @ 210F 55.5
cSt Viscosity @ 100C 8.91
Flashpoint in F 400
Fuel %
Antifreeze % 0.0
Water % 0.0
Insolubles % TR
TBN 5.5
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