Engine Make/Model: 2006 Nissan Titan V8 5.6L
Oil interval: 3006 miles
Engine mileage: 21058 miles on odometer
Oil/oil filter used: 5.5 qts GC 0w-30 Green SL/ 1qt GC0w-30 Gold SL & Napa Gold
Makeup oil: 0.25 qts(switched out Wix oil filter to a Napa Gold after 200 miles of last oil change due to oil filter leaking)
Oil lab: Blackstone
Oil samples was taken on 10-30-06
The left is the most recent and the right is from my last sample:
10-31-06 vs 5-24-06(11,634 miles odometer/2569 miles on oil)
Aluminum: 1 / 2
Chromium: 0 / 1
Iron: 3 / 6
Copper: 2 / 2
Lead: 1 / 2
Tin: 0 /0
Moly: 1 / 75
Nickel: 0 / 0
Manganese:0 / 0
Silver: 0 / 0
Titanium: 0 / 0
Potassium:0 / 0
Boron: 0 / 38
Silicon: 19 / 12
Sodium: 3 / 8
Calcium: 2736 / 2173
Magnesium:209 / 11
Phosphorus:851 / 571
Zinc: 964 / 672
Barium: 0 / 0
TBN: 5.7 / 4.8
SUS viscosity 210F: 65.5 / 59.1
Flashpoint: 385F / 390F
Fuel: TR / 0
Antifreeze: 0 / 0
Water: 0 / 0
Insolubles: 0.1 / TR
Blackstone's comments: Everything looks a little better in the second sample from your Nissan. Nothing was really out of line last sample, but we always like to see lower wear, especially after a longer oil run. The low wear is a very good sign that this engine is free of any mechanical problems at this point and is well past wear-in. We did find a trace of fuel in the oil. This didn't affect the viscosity and will likely disappear next time, since it's well below our problem level. The TBN was strong at 5.7, showing lots of active additive left. Silicon was a bit high, so we suggest checking the air filter.
My comments: I first changed out the OEM air filter at 5758 miles with a Wix and did my first UOA at 11634 miles with silicon at 12. Then i changed my air filter out at 15128 miles with Wix again and now i get 19? i did check the air filter panel recently and when i lift the air filter up, there seems to have some dust particles underneath the air filter seals. Maybe seals are not sealed enough.. i might have to give pureone air filters a try this time or use duck tape to tape around the air box?? i didnt ask for extended drain, because of warranty issues and im a 3k type guy mostly. But with that much tbn left, i dont see why i could go longer on oci and stretch it to 5k max.
Oil interval: 3006 miles
Engine mileage: 21058 miles on odometer
Oil/oil filter used: 5.5 qts GC 0w-30 Green SL/ 1qt GC0w-30 Gold SL & Napa Gold
Makeup oil: 0.25 qts(switched out Wix oil filter to a Napa Gold after 200 miles of last oil change due to oil filter leaking)
Oil lab: Blackstone
Oil samples was taken on 10-30-06
The left is the most recent and the right is from my last sample:
10-31-06 vs 5-24-06(11,634 miles odometer/2569 miles on oil)
Aluminum: 1 / 2
Chromium: 0 / 1
Iron: 3 / 6
Copper: 2 / 2
Lead: 1 / 2
Tin: 0 /0
Moly: 1 / 75
Nickel: 0 / 0
Manganese:0 / 0
Silver: 0 / 0
Titanium: 0 / 0
Potassium:0 / 0
Boron: 0 / 38
Silicon: 19 / 12
Sodium: 3 / 8
Calcium: 2736 / 2173
Magnesium:209 / 11
Phosphorus:851 / 571
Zinc: 964 / 672
Barium: 0 / 0
TBN: 5.7 / 4.8
SUS viscosity 210F: 65.5 / 59.1
Flashpoint: 385F / 390F
Fuel: TR / 0
Antifreeze: 0 / 0
Water: 0 / 0
Insolubles: 0.1 / TR
Blackstone's comments: Everything looks a little better in the second sample from your Nissan. Nothing was really out of line last sample, but we always like to see lower wear, especially after a longer oil run. The low wear is a very good sign that this engine is free of any mechanical problems at this point and is well past wear-in. We did find a trace of fuel in the oil. This didn't affect the viscosity and will likely disappear next time, since it's well below our problem level. The TBN was strong at 5.7, showing lots of active additive left. Silicon was a bit high, so we suggest checking the air filter.
My comments: I first changed out the OEM air filter at 5758 miles with a Wix and did my first UOA at 11634 miles with silicon at 12. Then i changed my air filter out at 15128 miles with Wix again and now i get 19? i did check the air filter panel recently and when i lift the air filter up, there seems to have some dust particles underneath the air filter seals. Maybe seals are not sealed enough.. i might have to give pureone air filters a try this time or use duck tape to tape around the air box?? i didnt ask for extended drain, because of warranty issues and im a 3k type guy mostly. But with that much tbn left, i dont see why i could go longer on oci and stretch it to 5k max.