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Old 10-23-2015, 03:30 PM
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Slightly embarrasing oil filter question

Hey all,

So woke up this morning with plans to do the first oil change on my 2015 Grand Cherokee Altitude with synthetic oil.

Everything was going great until it was time to take the oil filter off. Visually, I thought I had the correct size socket for the cap. After about 30 minutes of searching my garage, it turns out I didn't. I tried everything I had and it wouldn't budge.

So I had my Jeep with the oil drained out on ramps and I have to be to work in 30 minutes. Quite the dilemma.

So I said screw it, put the new oil in and left the old oil filter in.

Question is... now that I have the correct socket, can I replace the oil filter without draining the oil again? I've never owned a vehicle that had the top mount oil filter. I think I should be able to, but I don't want to take the filter out and then have oil gushing everywhere in the engine bay.

Anyone have any experience?

Greatly appreciated!

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Old 10-23-2015, 04:01 PM
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Re: Slightly embarrasing oil filter question

Quote:
Originally Posted by Cyberium View Post
Hey all,

So woke up this morning with plans to do the first oil change on my 2015 Grand Cherokee Altitude with synthetic oil.

Everything was going great until it was time to take the oil filter off. Visually, I thought I had the correct size socket for the cap. After about 30 minutes of searching my garage, it turns out I didn't. I tried everything I had and it wouldn't budge.

So I had my Jeep with the oil drained out on ramps and I have to be to work in 30 minutes. Quite the dilemma.

So I said screw it, put the new oil in and left the old oil filter in.

Question is... now that I have the correct socket, can I replace the oil filter without draining the oil again? I've never owned a vehicle that had the top mount oil filter. I think I should be able to, but I don't want to take the filter out and then have oil gushing everywhere in the engine bay.

Anyone have any experience?

Greatly appreciated!
My 1983 RX7 had a top mounted oil filter and I use to punch a hole in the top of it before starting my oil changes.

This hole allowed air in and oil to drain to the oil pan almost completely voiding the filter of oil.

I personally haven't done an oil change on my 3.6 engine but my method above should work like a charm..
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Old 10-23-2015, 04:13 PM
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Re: Slightly embarrasing oil filter question

I do recall seeing that some people actually loosen the oil filter pre-draining to ensure all the oil drains out.

I don't think it should be an issue unless the ignition was on.

Screw it, I'm doing it.

I'll let you know how it goes.
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Old 10-23-2015, 04:27 PM
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Re: Slightly embarrasing oil filter question

Quote:
Originally Posted by cherokee-gym View Post
My 1983 RX7 had a top mounted oil filter and I use to punch a hole in the top of it before starting my oil changes.

This hole allowed air in and oil to drain to the oil pan almost completely voiding the filter of oil.

I personally haven't done an oil change on my 3.6 engine but my method above should work like a charm..
You want him to punch a hole in the filter cap? On the 3.6 you only change the element, not the whole filter assembly.

You can pull the filter cap and change the element without draining your oil. Your "new" oil won't be contaminated to any meaningful degree by running through the old filter for a few days.
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Old 10-23-2015, 04:33 PM
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Re: Slightly embarrasing oil filter question

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Originally Posted by GlowingGhoul View Post
You want him to punch a hole in the filter cap? On the 3.6 you only change the element, not the whole filter assembly.

You can pull the filter cap and change the element without draining your oil. Your "new" oil won't be contaminated to any meaningful degree by running through the old filter for a few days.
This is the exact answer I wanted.

Thanks
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Old 10-23-2015, 04:45 PM
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Re: Slightly embarrasing oil filter question

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Originally Posted by Cyberium View Post
This is the exact answer I wanted.

Thanks
My pleasure and make sure you have the correct filter. They changed them in 2014 to help address the lifter tapping problems in the earlier version of the engine. Correct version ends in "AB".
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