For those so interested.................
Got my results on Tuesday....................she's looking good across the board, outside of the fact the oil sample tested was MC 5W-20 FS instead of the MC 5W-30 FS I've ran since the 2nd oil change (5-25-18) after I bought the car in 10-17, thus in reality what this sample is showing, IMHO, is a reflection of the general results across my full 139,433 mi thru 178,255 mi ownership range that is also reflective of the MC 5W-30 FS oil as well (the MC 5W-20 FS oil had residuals of the prior MC 5W-30 FS oil in it.......both oils have the
same API Gasoline Engines SP\SN Plus specs\ILSAC 6F rating thus
the exact same MC-formulated additive packages......only difference between them is the base oil viscosity index rating.......the main reason for Ford OEM OM warranty min recommendation of MC 5W-20 Blend is due to CAFE stds only--mostly emissions & MPG......fact FWIW. Also, Project Farm did a test on several OE oils--included Ford MC 5W-20 Blend--0-day sample tests results showed that this Ford MC oil had the best additive package mix of the lot......which stands to reason as all Ford Modulars & EcoBoost engines are warm runners for MPG\emissions purposes--OEM spec 212*F ECT normal operating temps thus 195*F min ECT, which have avg operating oil temps on the high side between 160*F-200*F......right at the oil temp threshold between 5W-20 & 5W-30 grade viscosity indexes using OEM 4.6L 3V 0-day bearing clearances......thus these engines will have a tendency to form varnish deposits--the thin, hard, brown residue--due to the higher operating temps causing oil viscosity shear\breakdown over time--FYI, oil sludge buildup is due to running engines
too cold & not getting oil hot enough to fully cook out any moisture impingement--unless the oil has a good additive package that can arrest\clean these deposits while at the same time maintaining good lubricity\protection.......).
Now if you will note, the viscosity index test results show this MC 5W-20 FS oil was still within its 20-grade viscosity index range..........but is on the low side of it (7.8 cstks, min range for 20-grade is 6.9 cstks) in only 3515 mi (oil was run hard at times while doing WOT\drivability tuning......during the full summer season thus was run fairly hot oil temp-wise at times) thus is a little too thin for my tastes\specific engine operating conditions. But this 5W-20 run to 5W-30 changeout did confirm other things......confirmed twice that the 5W-30 oil is noticeably better for VCT operations & for operational EOP curves--VCT operations are noticeably more stable & responsive under 5W-30 than 5W-20, which translates into more accurate VCT cam timing movement\positioning thus a slight advantage in avg HP\TQ outputs at the only expense of some potential MPG loss (will be testing this out soon on the 5W-30 oil.........have already done this on the 5W-20 oil back in October..........to get a comparison result for knowledge\records) but no measurable emissions degradation at all to date (have pulled several IM Readiness Self-Check Test results from ECU since last oil changeout........all showing to remain within prior established normal Cat CE Ratio operating ranges between .035-.071 on both banks, depending on how the car was being driven.......which are stellar emissions readings thru these MagnaFlow #5461336 CARB-cert EO# D-193-140 TWC OEM-grade aftermarket cats flowing consistently between 93%-98% DECS 2.1 software calculated engine VE thru my FRPP Hot Rod cams using CMCV's--in-tune readouts between .72-.82 air load.....Ford Spanish Oak ECU's SD equivalent of calculated engine VE% using J-1349 reference std dry air--depending on air environmental conditions, ie, uncorrected density altitude & IAT--ECU can't calculate humidity% thus is "baked into" air density off MAF hot wire voltage readouts......this is approx 4%-5% better across the board than what I have recorded thru my Lunati VooDoo #21270700 cams using Steeda CMDP's......MAF Lambda 1.0 calibration results between the 2 cam profiles using the same SBE long block\CAI\MAF section & sensor\TB\OEM IM plenum & runners\full exhaust setup also back this up......only difference outside of cams are CMCV's vs CMDP's). Engine is operating very efficiently.............if she's moving the air, she'll make the associated avg & peak HP\TQ outputs as long as the fueling, VCT cam timing mapping & ignition timing is optimized per engine RPM......ie, the tuning.
Airmass=TQ........TQ=Airmass...........TQ over time\distance\RPM=work done called HP.
1 of the main things I wanted to see was the amount of fuel dilution % in the oil......a good marker of how efficient my tuning is across the board--as well as how clean the injectors are spraying\atomizing the fuel & overall engine health. Results showed 1.43%..........well within normal ranges.........also indicates engine blow-by tendencies at the level of tuning I've done.......which is also very little thus she's old but still sturdy cyl-wise thus good piston ring-to-cyl wall contact\sealing w\ hardly any noticeable bearing wear indicated.....thus also shows how good Ford's own MC oil formulations are when run\maintained in these Modulars since they were specifically formulated for them.
On another note, this sample test results gives some validation to K&N's air filters ability to clean the air when correctly maintained.........NW NM is 1 windy & dusty area to be operating an ICE in...............
When the MC 5W-30 FS oil reaches the 3515 mi mark, I plan to pull a sample & send it in for analysis to get an apples-to-apples dilution comparison...........
So far, the new oil filter adapter housing gasket is doing stellar...........oil leaks are history & old leak areas are "drying up"........oil level is so far holding steady at the upper hole marker on dipstick........even after a couple sessions of 1\4 mi WOT rips on her at the NAPI International Raceway & Test Facility down in Mexico.......checking air density "correction" effects at elevation on HP\TQ outputs at low IAT's........
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