Sludge is caused by a motor that does not get hot enough to burn off condensation and moisture. Sludge can be prevented by oil changes and running at operating temperature long enough to keep things flowing. Ask my old 1995 Taurus, 282,000 miles- original everything except alternator, A/C compressor and tranny. The car was run hard and hot but was always getting preventative maintenance.
'04 Silver Marauder w/ sunroof - HID lighting, JL Audio / Eclipse DVD/NAV/iPod/camera, 4.10's, 2" drop, Progard Bumper Baffle, Delete tips, Billet Pedals, BC4E dead pedal, Lidio Tune, Mach1 chin spoiler, K&N CAI, TCE lines, Super40's, tinted tails, SS Inserts, Heinous Control Arms, Real oil gauge, lighted door handles. Currently installing Eaton M112.
2004 Mercury Marauder
Born March 2004, adopted October 2005. Sold January 2012, adopted AGAIN January 2016
2,187 of 3,214
997 in Silver Birch
448 with light flint interior
304 with heated seats
336 with sunroof