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

Messages
1,034
Location
Louisiana
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 % <0.5 Antifreeze % 0.0 Water % 0.0 Insolubles % 0.2
 
Messages
1,841
Location
United We Stand
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.
 
Top