Oil drain bolt & crush washer

How important is the crush washer?

I lost mine when I changed my oil but have noticed absolutely no oils seepage since the change. If its that important I will make sure to put one in next time I change it. BTW, where can I get them?

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'91 Black/Black
 
Assuming the plug is tight and doesn't back out you're fine. I'd probably be nervous enough to replace it anyway.

In theory you should replace it with a new one every time you pull the plug. It’is soft, but not soft enough to compensate for the gouges it gets from being torqued down, so a used one can leak. In a pinch you can easily lay a piece of fine sand paper on a flat surface, then run the washer back and forth on a few times on each side to make it good as new, if a wee bit thinner. However, they are readily available at the dealer and many toss one in no charge with each filter.
 
Even the ones that charge for it only charge 10 to 35 cents.

Tip: When you buy your oil filters, tape a crush washer to the shrink wrap of each filter so you have it handy when you need it.
 
You can get a cool brass washer that has a rubber coating on the inside ring and you never have to change it again.
 
I was told that the alum.crush washer wasn't employed to prevent leaks, but used to releive the stress on the threads in the oil pan. When torqued to the proper poundage, the crush washer does what is says. If this is true, the rubber coated brass washer might not be a good idea. This is also the reason they are not to be reused.
 
Originally posted by Chuck:
I was told that the alum.crush washer wasn't employed to prevent leaks, but used to releive the stress on the threads in the oil pan. When torqued to the proper poundage, the crush washer does what is says. If this is true, the rubber coated brass washer might not be a good idea. This is also the reason they are not to be reused.

That sounds reasonable to me, except that the rubber coating may be able to sever the same purpose but repeatedly. Given the low torque on the pan bolt I doubt that a solid aluminum washer crushes enough or in a way that it can’t be reused on that basis alone, but that’s just a guess. Fortunately they are cheap and readily available.
 
I like to replace the aluminum crush washer each time I change the oil...but from time to time, I don't have one handy or can't find my stack of them...so I just turn the existing one around (flip it), and it works just fine...but I never use them more than once.

-Andie
 
I never remove the drain bolt; the Griot's oil extractor is the only way to go
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10122_LG.jpg

http://www.griotsgarage.com/catalog.jsp?L1=L1_1000&L2=L2_1007&L3=L3_4500&SKU=10122
 
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