1992 Mitsu Mirage, Advance Auto Oil 10w-30, 2510 miles/6 months

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  • 4/26/03 3/9/05
    1.5 Liter
    110779 124481
    OCI: 3120 miles 2510
    Bosch Premium oil filter Supertech oil filter
    KN Air filter Fram Air filter
    Analysis done by ANA labs Oil guard
    Valvoline Maxlife 5w30 Advance Auto
    Makeup:Maxlife 10w30 1.25 quarts 300 ml
    Oil use from 10/02-4/26/03 10/04-3/05

    SB - 0
    TI - 0
    AG - 0
    CU - 1 3
    PB - 14 1
    SN - 7 0
    AL - 4 2
    NI - 0 0
    FE - 6 0
    CR - 0 0
    CD - 0
    NA - 0 0
    B - 11
    SI - 2 15
    V - 0
    K - 10 0
    MO - 26 49
    MG - 62
    CA - 2839
    BA - 0
    P - 889
    ZN - 969
    SYSTEM - ENG
    WATER - 0.05 0
    SOLIDS - 0 0
    GLYCOL - N 0
    FUEL - 0 0
    SAE_GRADE - (BLANK)
    TBN - 7.1 8.1
    PHY_TAN - 0
    VISC - 10.47 10.9
    VISC_TEMP - 100
    Nitration 1.3
    Oxidation 2.4

First UOA on left from two years ago. This one is on the right is so unbelievable that I refuse to believe it's accurate! Check engine light on almost the entire interval. I smell gasoline in the oil. I'm getting 60 miles less per tank. TBN is 8.1 LOL dinos don't start that high especially the store brands. Lead, fuel, viscosity, TBN are inaccurate. I'm surprised silicon is only at 15. I put a new valve cover gasket, rear main seal, and oil pan gasket on this car before this oil was put in. Before the rear main seal was replaced, the engine was run so low on oil it was drastic. I was losing a quart in 8 miles and I get great wear. lol. With the Pennzoil HM confusion in the virgin oil forum. I'm going to send my mix of pennzoil HM to two labs.
 
FE=0 = cause for suspicion
frown.gif
 
Maybe you got someone elses analysis? Sonething is not right on this one. Time for Terry Dyson analysis maybe? Sending you next one to two labs seems like a good idea.
 
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