2003 F150, 1000 miles Pennzoil 10/30 68k total

[millerbl00]

2003 F150, 1000 miles Pennzoil 10/30, 4.2 v6

This is the second UOA at 1000k because I was concerned about sodium and lead. Sodium is down, I believe the rest is from the last oil I used. Lead is back to 3 ppm with only 1000k miles. LAst UOA it was 6 ppm at 3000k. I do not understand the lead. Any ideas?

ALUMINUM 1
CHROMIUM 0
IRON 2
COPPER 1
LEAD 3
TIN 0
MOLYBDENUM 13
NICKEL 0
MANGANESE 0
SILVER 0
TITANIUM 0
POTASSIUM 0
BORON 101
SILICON 6
SODIUM 18
CALCIUM 1630
MAGNESIUM 7
PHOSPHORUS 545
ZINC 663
BARIUM 0

SUS Viscosity @ 210°F 58.6
cSt Viscosity @ 100°C 9.81
Flashpoint in °F 420
Fuel % Antifreeze % 0.0
Water % 0.0
Insolubles % 0.2

 

[Cup of Joe]

You should not compare this UOA directly to your previous UOA since you sampled at 1/3 the mileage and used a different oil. I would sleep easy with 3 or 6 ppm of lead. If you are worried about the lead sample at consistent intervals for trending. If the lead is still a concern to you try a 40wt.

 

[ChiTDI]

Think through the fuel/additive procedures also if you're using some type of additive. They can skew the lead results.

 

[Cup of Joe]

Just noticed the Si is a bit high in both reports for the mileage, "could be" some dirt getting in.

 

[millerbl00]

Thanks. I will see what happens at 3000k

 

[Brett Miller]

Not enough miles to really draw any valid conclusions.