2000 Ford F150 w/5.4L, auto trans, tow package. Driven 6 mi one-way to work (apx 15 min run time) in ambient temp of 40 deg winter a.m.'s, 60 deg winter p.m's, 70 deg summer a.m.'s, 80-90 deg summer p.m.'s. First oil change at 2,000 mi. All subsequent changes at apx 5,000 with GTX at American Fast Lube. (Changed "early" this time as I am now towing a 3000# boat on the weekends as much as I can.)
Miles on unit 31,137. Miles on oil 3,782. Time on oil 5 months. No make-up oil. Castrol GTX 10w30 from bulk. Warner (Champion Labs) oil filter. Air filter (Warner) replaced at apx 15,000 miles and this change.
Test done by Blackstone on 7-11-03.
ALUMINUM 5
CHROMIUM 1
IRON 19
COPPER 9
LEAD 0
TIN 0
MOLYBDENUM 43
NICKEL 1
MANGANESE 1
SILVER 0
TITANIUM 0
POTASSIUM 0
BORON 4
SILICON 9
SODIUM 2
CALCIUM 1695
MAGNESIUM 6
PHOSPHORUS 775
ZINC 966
BARIUM 0
SUS @ 210 56
FLASH 410
TBN 1.2
Fuel, AF, H2O & Insols within range.
Blackstone comments: "Nothing too unusual ... all wear read well within the average range for this type engine, which is a very good indication of normal wearing parts ... normal wear after about 4,000 miles on oil ... good oil filtration ... TBN was low ... [TBN] probably started out around 7 viscosity was low ... try 4,500 on the oil next time."
My comments/questions for the cognoscenti: This is obviously 'new' method TBN. If TBN of less than 3 using 'old' method indicated that oil was nearing the end of its useful life, what does that equate to under the new method? This oil has sheared to a high 20 weight. If FoMoCo is now recommending Xw20 oils for these engines, should I be concerned with the shear-down? If my previous 5,000 mile changes have cause premature wear, would it have caused this UOA to indicate abnormal wear?
Any other comments will be welcomed.
And on another note, of all the truck, motorcycle and boat forums I frequent, this is my favorite. Among the bravado there is a massive amount substance. (I really enjoyed the "scientific-evidence-M1-extended-drain thread.) I'll be doing a UOA on Harley Davidson 360 20w50 in the not too distant future.
Miles on unit 31,137. Miles on oil 3,782. Time on oil 5 months. No make-up oil. Castrol GTX 10w30 from bulk. Warner (Champion Labs) oil filter. Air filter (Warner) replaced at apx 15,000 miles and this change.
Test done by Blackstone on 7-11-03.
ALUMINUM 5
CHROMIUM 1
IRON 19
COPPER 9
LEAD 0
TIN 0
MOLYBDENUM 43
NICKEL 1
MANGANESE 1
SILVER 0
TITANIUM 0
POTASSIUM 0
BORON 4
SILICON 9
SODIUM 2
CALCIUM 1695
MAGNESIUM 6
PHOSPHORUS 775
ZINC 966
BARIUM 0
SUS @ 210 56
FLASH 410
TBN 1.2
Fuel, AF, H2O & Insols within range.
Blackstone comments: "Nothing too unusual ... all wear read well within the average range for this type engine, which is a very good indication of normal wearing parts ... normal wear after about 4,000 miles on oil ... good oil filtration ... TBN was low ... [TBN] probably started out around 7 viscosity was low ... try 4,500 on the oil next time."
My comments/questions for the cognoscenti: This is obviously 'new' method TBN. If TBN of less than 3 using 'old' method indicated that oil was nearing the end of its useful life, what does that equate to under the new method? This oil has sheared to a high 20 weight. If FoMoCo is now recommending Xw20 oils for these engines, should I be concerned with the shear-down? If my previous 5,000 mile changes have cause premature wear, would it have caused this UOA to indicate abnormal wear?
Any other comments will be welcomed.
And on another note, of all the truck, motorcycle and boat forums I frequent, this is my favorite. Among the bravado there is a massive amount substance. (I really enjoyed the "scientific-evidence-M1-extended-drain thread.) I'll be doing a UOA on Harley Davidson 360 20w50 in the not too distant future.