The groove in the middle should go "out" as you place it on the drain plug -
it will eventually be the side that goes against the oil pan. That is one
of those "crush-able" o-rings, and that groove is what provides the seal.
Key is to ALWAYS make sure you replace these crushable o-rings with every
oil change. After they have been deformed that first time, if you try to
re-use it, it will leak.
Hope this helps.
I've wondered how these work. Haven't really ever heard anyone who actually
used one over a period of time make a comment about them. How long have you
had yours in Brian? How many oil changes has it gone through?
You should tell that to the original "crushable" o-ring under my 01
13 oil changes later, no leaks at the drain plug. I wish I could say
that for the valve cover (leaking at gasket) that the idiot "Hyundai
Certified" mechanic removed...
IMHO, if you're destroying those rings on every usage (at least the
brass/copper ones like the factory used) you really need to lay off the
drain plug torque - its not a lugnut.
You have me laughing at that, because often I have accused "fast oil change"
mechanics of using the occasion to tighten the drain plug to do their
chin-up exercises - it is unbelievable how tight that drain plug is when
anybody other than me does the oil change.
Usually I only use two or three fingers on the wrench.
But still, if I forget to change that O-ring (which I have done twice), they
But the dealer gives me a whole bag-full for nothing, so it is no big deal
for me to change them.
Thanx for the info.
My Hyundai 1996 Accent has over 213,000 miles on it. I just changed the oil
in it today, and on my wife's 1993 Impreza with over 230,000 albeit rusting
miles on it. Both cars use/take the same generic NAPA shrink wrapped
filter. Both cars still have the original so-called crushable washer. Now,
let's see which car makes it to over 300,000 miles first?
I re-used the washer on my 4 cylinder Sonata as I didn't have one for
the first oil change. No leak at all. I bought a bag with the case of
filters I ordered online, but I don't see any problem re-using them a
few times. The washer on my Chevy truck is the OEM washer and has been
through 18 changes now.
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