Originally Posted by
03Merc
I change the filter and add 4-5 Fresh quarts of Motorcraft Mercon V every 10,000 Miles. That should be Your regular service for it. I'm at 145k miles. Factory transmission with the Tune. It's pretty damn solid.
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I’m following RFOverlords advice and not changing the filter, just the fluid every 3 oil changes or so. I have an Art Carr deep pan so that’s about 8 full quarts. I might change the filter at 150K, but from what I hear it shouldn’t really be necessary.
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2003 black pre-decontented 300B #5886 of 7838; Born on 10/31/02
MartyO tune, 4:10's, T/A stud & girdle, MMX shaft+DS loop, Metco control arms, Quickor RSB, Addco FSB, Megs delete tips, Granatelli solid coil connectors, NGK plugs & LP 170 stat, DR rear engine cooling mod, PI 3000 TC, Level II tranny, Art Carr deep pan, Steeda pullies/billet caps, billet door locks, Ford Racing oil cap / polished coil covers, PHP CAK & Metco carbon fiber intake, DG Motorsports CF radiator cover, Fumoto oil drain valve, oil deflector, real Autometer gauges, ScanGauge II, Weatherflectors, underbody lighting kit, Zack chrome grill, OEM spoiler & door edge guards, KB dead pedal, Dynopro aluminum sills & pedals, Viper alarm w/ remote start, MM fender badges, red painted calipers, SS inserts, Silverstar Ultras, hood bumpers, 35% tints, Gorilla lug nuts, MM valve caps, Pro-Guard, DD trunk lid liner, CM UHI kit, CM Godshead rear & steering wheel badges, S-55 badge, FilterMag, MM trunk bib, ported sub-woofer.