Hello, as title states after changing the oil on my wrx 07 for the first time I had to use 5qts to fill it to line..?
procedure i used.
drained oil via pan, after pan was empty i replaced the drain plug with a new washer.
removed oil filter and let oil drain... replaced oil filter with smaller subaru brand oil filter.
added just over 4 qts of oil.
started engine up and let it run for 20-30 seconds or so, shut of vehicle.. let it sit for 30 sec more, checked oil level and was at the lower mark on dipstick?? so i added the rest of the 5th qt, this put me just above the full mark.
how is this possible? after about 700 miles on the oil i checked it again, its all clean and sitting just above the full lvl mark...
the motor is stock 2.5 07 wrx motor,.. the owners guide says 4.2 qts oil capacity..
any ideas anyone?
Thanks in advance