Hello, I just had rear main seal and oil pan replaced... get home and due to another issue -- o-ring at end of high pressure oil line getting fried twice within 40 miles and replaced there is much oil residue and leaking? -- tried to check my oil, and removed dipstick and it will not re-insert. There has not been this problem AT ALL prior to the repairs, It goes in better than 3/4 of the way and then feels like it is hitting the oil pan. what could be going on? Please help! Thank you.