How critical is O-ring change while doing oil change?

[joeshark]

I need to do an oil change, and can't really get the o ring, unless I order online.

How critical is this? Should it be alright to re use? Don't know if it's been reused already

[WhiteNBlack08]

I have 103K on my smart, I've re-used the same copper seal for the last 95K, no issues. Don't worry about it.

[orngandblack]

if you are talking about the copper washer,
you should be able to use the same one. i have done several diy oil changes and have always used the same copper washer

[joeshark]

Thanks, You guys are Awesome Will work on it this weekend.

[Uptown Dog Co]

If anyone needs one, I have an extra that I'll sell for what I paid for it from SM. I don't use them anymore. I'll look up the price and edit this post in a little while with the cost.

[kennyrayandersen]

if it is got a surface imperfection on it you can take a piece of 220 (and then 400 if you want) and sand it on a flat surface putting the sand paper on the flat surface facing up and then putting the washer between the sandpaper and your finger. I used the last washer in my Sentra for 140,000 miles with nary a drop of oil lost. Just no need to over-torque it!

[SmartJoeMN]

Copper ones you can reuse. Aluminum ones you typically can't.

[ca smartone]

More info here.....

Washer on oil drain plug

[kennyrayandersen]

Originally Posted by SmartJoeMN

Copper ones you can reuse. Aluminum ones you typically can't.

that would make sense, but I've only ever had the brass/copper ones.

[SmartJoeMN]

Honda uses aluminum ones.