Am I Supposed to Drain Both Drain Plugs to Do an Oil Change?
Hi Everybody,
As soon as I bought my Mustang about a month ago, I went out and bought some synthetic oil and drained the oil that was in it. Well, I saw two drain plugs but just opened the rear one and drained the oil. I then added 5 quarts of Valvoline synthetic and started it up and let it idle for about two minutes. I then shut it off and checked the level and it seemed like it was a quart or a little more than a quart over the cross hatches on the dip stick. I just left it in there and drove around for three weeks, until last week, and checked the level. It was still at the same place. So today I went and bought some Lucas oil stabilizer and drained about two quarts from my oil pan, this time the rear one I drained about a quart and then the front plug I drained another quart. The dipstick was in the add one quart region so I added the whole bottle of Lucas. Then the level was about a quarter inch above the full mark, so I just left it in. Is this okay or should I drain a little bit out? Why the two drain plugs and do we drain both plugs at oil changes? Thanks for your help.
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1992 LX 5.0, 12 inch K & N cone, SLP Loud Mouth dumps (for 98 and up Cobra), home made cold air box, underdrive pulleys, 75mm chrome Pro M MAF, bypassed airpump with short belt, Jeg's Universal Ford 2 row aluminum radiator, 16 inch electric fan, E cam, SVO 1.6 roller rockers, weld in subframe connectors, 16 degree timing, short throw shifter, Hotchkiss tubular UCAs and LCAs, Maxspeed springs, aluminum drive shaft,shorty headers, and BBK adjustable fuel pressure regulator, 3.73gears
1992 LX 5.0, 12 inch K & N cone, SLP Loud Mouth dumps (for 98 and up Cobra), home made cold air box, underdrive pulleys, 75mm chrome Pro M MAF, bypassed airpump with short belt, Jeg's Universal Ford 2 row aluminum radiator, 16 inch electric fan, E cam, SVO 1.6 roller rockers, weld in subframe connectors, 16 degree timing, short throw shifter, Hotchkiss tubular UCAs and LCAs, Maxspeed springs, aluminum drive shaft,shorty headers, and BBK adjustable fuel pressure regulator, 3.73gears
its a dual sump pan for the position of the crossmember..
....k-member.....not crossmember, the crossmember supports the tranny.
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1992 GT......
AOD to T-5 conversion, 3.73's, Zoom HD clutch, ported E7's, cut open and ported factory intake, ported stock throttle body, subframe connectors, 1.5" headers, o/r h-pipe, flowmaster cat back, MAC air tube, K&N conical filter, homemade heat sheild for filter, homemade cold air kit, MSD coil, 9mm plug wires, advanced base timing to 12 degrees, Chrome Pony rims, 235/55/r16 Cooper Cobras..... definately more to come!! ALL of this was done by myself....including the porting and gea
I pull both the plugs and then pour a quart of some cheap oil through the motor to kind of flush it out. After that pull your filter and put the new one on. Add 5 quarts of the good stuff and be done.
Am I Supposed to Drain Both Drain Plugs to Do an Oil Change? 
