I will post a picture later for refrence. Basically here is the deal. In order to fit my new ELT mani, and downpipe, etc I loosened the passenger motor mount and jacked up on the oil pan to gain some clearance to install parts. I put a block of wood under the pan and when I was under the car hooking up the drain line the pan looked seriously cracked. I put a quart of 10w40 in the car because I figured if it was cracked it would leak. Well this morning it hasnt leaked at all. Still i did some reading on here and people complain of rough casting marks that appear to look like cracks. This could be infact what I have and maybe Im just paranoid about it. If there was only a quart of oil in the pan, but its cracked would it still leak out? I just want to make sure I dont run around with a cracked oil pan. I will post pics later though. Any help is appreciated.

 

Where do you think it is? I'm really bored and can go take pics of my pan if you want. . .

 

I'm sure it's probably from the casting, my spare that I just had tapped looked the exact same way as you describe.
A picture would Help to verify however.

 

around the drain plug, and on the passenger side of the pan, especially near the back of the pan right above the black brace under the car. Thanks man! You do it all

 

i got some pics best i could....i think this is what you're seeing....

 

basically honda uses the same die over the past 10 years to make these oil pans. Over time and lots of heating and coolings, these dies start to wear. Those marks you see are the cracks in the die that are completely aesthetic. Don't worry about it.

 

damn man do you have my EXACT pan? Mine looks JUST like that....this is a big relief. I was so worried that I cracked the pan when I was jacking up on it. Its not like I had put a lot of pressure on it. I figure if there was a leak it would have made itself known by now. Thanks man, sorry I wont be buying your pan more than likely.

 

thanks soul, your advice is always welcomed

 

Exactly what my pan looks like...it's normal. You're good.

 

I think I know why only the passenger side looks this way. I painted my oil pan silver with high temp paint and some of the oil residue wore the paint off the passenger side. When my return line was leaking it ate away the paint and thus I see the casting marks again whereas the drivers side still has perfect paint. Oh i am SO relieved. You guys rock.