Vehicle: 1993 Nissan P/U, 4 cyl.
Oil: Formula Shell 10W30 SL
Oil Filter: Supertech
Miles on oil: 4,752
Miles on truck: 88,552
Makeup oil added: none
Oil usage: 6 to 8 ounces
Element PPM
Aluminum 4
Iron 17
Copper 2
Lead 16
Tin 1
Moly 1
Silicon 7
Sodium 5
Calcium 1921
Magnesium 9
Phosphorus 774
Zinc 886
Barium 1
All others 0
SUS visc @ 210 = 56.9 (59-65)
Flashpoint 425
Fuel Antifreeze 0.0
Water 0.0
Insolubles 0.3
TBN 1.0
Blackstone said all wear metals were normal except for lead. They also flagged the viscosity for being out of range.
I pushed this interval a little far. I normally change the oil at 4000 miles. I used a Supertech filter this time and I suspected that the ADBV started leaking at about 3500 miles. I noticed at that mileage that my oil light would stay on a little longer than normal on the first start in the morning. I later confirmed that the ADBV was leaking when I removed the filter about 10 minutes after stopping the engine and almost no oil leaked out. My previous Wix filters held a large quantity of oil and make quite a mess when changed. I have now installed a remote oil filter on this truck and am using Motorcraft FL1A oil filters.
I have used Shell oil for several years now and have been very pleased with Shell. However, I am dissapointed that this batch sheared down to a 20 weight. The flashpoint did remain high at 425 though. I also know that I used up all of the additives in this oil and it was changed at the right time. The remote oil filter and the oversize filter has increased my sump capacity about 1/2 quart. I have changed to Citgo oil and my goal is to go 5000 miles on a oil and filter change with conventional oil.
Do you think that my higher than normal lead number is due to the oil shearing down to a 20 weight, or my oil filter ADBV started leaking, or is there another factor at play here?
Oil: Formula Shell 10W30 SL
Oil Filter: Supertech
Miles on oil: 4,752
Miles on truck: 88,552
Makeup oil added: none
Oil usage: 6 to 8 ounces
Element PPM
Aluminum 4
Iron 17
Copper 2
Lead 16
Tin 1
Moly 1
Silicon 7
Sodium 5
Calcium 1921
Magnesium 9
Phosphorus 774
Zinc 886
Barium 1
All others 0
SUS visc @ 210 = 56.9 (59-65)
Flashpoint 425
Fuel Antifreeze 0.0
Water 0.0
Insolubles 0.3
TBN 1.0
Blackstone said all wear metals were normal except for lead. They also flagged the viscosity for being out of range.
I pushed this interval a little far. I normally change the oil at 4000 miles. I used a Supertech filter this time and I suspected that the ADBV started leaking at about 3500 miles. I noticed at that mileage that my oil light would stay on a little longer than normal on the first start in the morning. I later confirmed that the ADBV was leaking when I removed the filter about 10 minutes after stopping the engine and almost no oil leaked out. My previous Wix filters held a large quantity of oil and make quite a mess when changed. I have now installed a remote oil filter on this truck and am using Motorcraft FL1A oil filters.
I have used Shell oil for several years now and have been very pleased with Shell. However, I am dissapointed that this batch sheared down to a 20 weight. The flashpoint did remain high at 425 though. I also know that I used up all of the additives in this oil and it was changed at the right time. The remote oil filter and the oversize filter has increased my sump capacity about 1/2 quart. I have changed to Citgo oil and my goal is to go 5000 miles on a oil and filter change with conventional oil.
Do you think that my higher than normal lead number is due to the oil shearing down to a 20 weight, or my oil filter ADBV started leaking, or is there another factor at play here?