After my previous UOA I decided to drop my intervals to Ford's 5000 mile reccomendation for this car, rather than LC's 10K reccomendation. I did this based on my belief that the engine is not 100% right... it seems to be thinning its oil out, and unreasonably so, pointing to gasoline dilution of the crankcase oil.
Due to a visit from the mother-in-law and weather conditions and my desire to not let anyone else do my changes, I ran 818 miles over my intended interval.
The left-most analysis posted below was my most recent 5818 mile run with Exxon Superflo SM 5W20 and Lube Control installed at oil change and then 1 oz per 500 miles.
Take a look at my below results and let me know what you think!
The car is a 2002 Mercury Sable LS Premium with the 3.0 Liter 24V Duratec V6. Do not confuse that with the Vulcan engine of the same size available in this model.
Usage was 60/40 highway-city driving. Oil analysis by Schaeffer’s Manufacturing.
My car is currently running the second half of my case of Exxon Superflo 5W20 SM. I installed LC at 2 OZ per quart at install and am using a treat rate of 2 OZ per 1000 miles.
Looks like all 3 fills of this particular Superflo were dramatically different formulas.
code:Date 07/24/06 3/13/06 7/19/05 6/23/05 3/21/05 Lab Schaeffers in all cases ***Vehicle ID*** Make Mercury in all cases Model Sable LS in all cases Year 2002 2002 2002 2002 Engine Duratec 3.0L in all cases. Miles on Vehicle 63273 57454 47606 43170 38646 ***Oil Identification*** Oil Brand Exxon Exxon Exxon Pennz Kendall Oil Series Superfl Superfl Conv. Bulk Conv. Oil SAE J300 5W20 5W20 5W20 5W30 API SX SM SL SL SL NR Miles on Oil 5818 9848 4435 4524 1946 Months In Service 4 7 4 2 2 ***Elements*** Antimony Sb NR NR NR NR NR Cadmium Cd NR NR NR NR NR Vanadium V NR NR NR NR NR Aluminum Al 4 6 5 6 7 Chromium Cr 0 0 0 0 0 Iron Fe 16 23 8 14 15 Copper Cu 6 6 5 5 3 Lead Pb 1 1 0 0 0 Tin Sn NR NR NR NR NR Molybdenum Mo 155 128 259 218 33 Nickel NR NR NR NR NR Manganese Mn NR NR NR NR NR Silver Ag NR NR NR NR NR Titanium Ti NR NR NR NR NR Potassium K NR NR NR NR NR Boron B NR NR NR NR NR Silicon Si 16 16 17 17 12 Sodium Na NR NR NR NR NR Calcium Ca 1965 1262 2463 1997 2317 Magnesium Mg 9 5 11 7 10 Phosporus P 787 498 981 1014 924 Zinc Zn 892 619 1104 1027 1017 Barium Ba NR NR NR NR NR ***Viscosity*** cST @ 100 C 7.6 7.02 7.55 7.25 9.35 SUS @ 210 F NR NR NR NR NR ***Misc*** Flashpoint (F) NR NR NR NR NR Fuel % N N N N N Antifreeze % 0 0 0 0 0 Water % 0 0 0 0 0.2 Insolubles % NR NR NR NR NR Sulfur 5 7 6 8 5 Oxidation 3 10 3 2 0 Nitration 12 24 10 7 6 TBN NR NR NR NR NR Ferrous Debris NR NR NR NR NR Fuel Soot % NR NR NR NR NR Additives LC+FP LC+FP LC LC None
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